Buckets:
| <meta charset="utf-8" /><meta name="hf:doc:metadata" content="{"title":"RL Training with OpenEnv: 2048 Game","local":"rl-training-with-openenv-2048-game","sections":[{"title":"What You’ll Learn","local":"what-youll-learn","sections":[],"depth":2},{"title":"Prerequisites","local":"prerequisites","sections":[],"depth":2},{"title":"Part 1: Environment Setup","local":"part-1-environment-setup","sections":[{"title":"Installation","local":"installation","sections":[],"depth":3},{"title":"Imports","local":"imports","sections":[],"depth":3}],"depth":2},{"title":"Part 2: Model Configuration","local":"part-2-model-configuration","sections":[{"title":"Configuration Classes","local":"configuration-classes","sections":[],"depth":3},{"title":"Loading the Model","local":"loading-the-model","sections":[],"depth":3}],"depth":2},{"title":"Part 3: The 2048 Environment","local":"part-3-the-2048-environment","sections":[{"title":"Game Overview","local":"game-overview","sections":[],"depth":3},{"title":"Connecting to the Environment","local":"connecting-to-the-environment","sections":[],"depth":3},{"title":"Board Utilities","local":"board-utilities","sections":[],"depth":3}],"depth":2},{"title":"Part 4: Reward Function Design","local":"part-4-reward-function-design","sections":[{"title":"Reward Implementation","local":"reward-implementation","sections":[],"depth":3}],"depth":2},{"title":"Part 5: Strategy Generation","local":"part-5-strategy-generation","sections":[{"title":"Prompt Template","local":"prompt-template","sections":[],"depth":3},{"title":"Executing Generated Strategies","local":"executing-generated-strategies","sections":[],"depth":3}],"depth":2},{"title":"Part 6: GRPO Training","local":"part-6-grpo-training","sections":[{"title":"Training Configuration","local":"training-configuration","sections":[],"depth":3},{"title":"Training Loop","local":"training-loop","sections":[],"depth":3}],"depth":2},{"title":"Part 7: Deployment","local":"part-7-deployment","sections":[{"title":"Saving the Model","local":"saving-the-model","sections":[],"depth":3},{"title":"Push to Hugging Face Hub","local":"push-to-hugging-face-hub","sections":[],"depth":3},{"title":"Using the Trained Model","local":"using-the-trained-model","sections":[],"depth":3}],"depth":2},{"title":"Preventing Reward Hacking","local":"preventing-reward-hacking","sections":[],"depth":2},{"title":"Summary","local":"summary","sections":[],"depth":2},{"title":"Next Steps","local":"next-steps","sections":[],"depth":2},{"title":"Related Resources","local":"related-resources","sections":[],"depth":2}],"depth":1}"> | |
| <link href="/docs/openenv/pr_749/en/_app/immutable/assets/0.e3b0c442.css" rel="modulepreload"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/entry/start.85477f45.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/scheduler.2b22cead.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/singletons.63566282.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/paths.dd876c7b.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/entry/app.51835dc5.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/preload-helper.0820fbc7.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/index.1a0e8013.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/nodes/0.167255c0.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/each.e59479a4.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/nodes/63.e9744c77.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/Heading.c0d3f116.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/MermaidChart.svelte_svelte_type_style_lang.21bcf336.js"> | |
| <link rel="modulepreload" href="/docs/openenv/pr_749/en/_app/immutable/chunks/CodeBlock.c8d73295.js"><!-- HEAD_svelte-u9bgzb_START --><meta name="hf:doc:metadata" content="{"title":"RL Training with OpenEnv: 2048 Game","local":"rl-training-with-openenv-2048-game","sections":[{"title":"What You’ll Learn","local":"what-youll-learn","sections":[],"depth":2},{"title":"Prerequisites","local":"prerequisites","sections":[],"depth":2},{"title":"Part 1: Environment Setup","local":"part-1-environment-setup","sections":[{"title":"Installation","local":"installation","sections":[],"depth":3},{"title":"Imports","local":"imports","sections":[],"depth":3}],"depth":2},{"title":"Part 2: Model Configuration","local":"part-2-model-configuration","sections":[{"title":"Configuration Classes","local":"configuration-classes","sections":[],"depth":3},{"title":"Loading the Model","local":"loading-the-model","sections":[],"depth":3}],"depth":2},{"title":"Part 3: The 2048 Environment","local":"part-3-the-2048-environment","sections":[{"title":"Game Overview","local":"game-overview","sections":[],"depth":3},{"title":"Connecting to the Environment","local":"connecting-to-the-environment","sections":[],"depth":3},{"title":"Board Utilities","local":"board-utilities","sections":[],"depth":3}],"depth":2},{"title":"Part 4: Reward Function Design","local":"part-4-reward-function-design","sections":[{"title":"Reward Implementation","local":"reward-implementation","sections":[],"depth":3}],"depth":2},{"title":"Part 5: Strategy Generation","local":"part-5-strategy-generation","sections":[{"title":"Prompt Template","local":"prompt-template","sections":[],"depth":3},{"title":"Executing Generated Strategies","local":"executing-generated-strategies","sections":[],"depth":3}],"depth":2},{"title":"Part 6: GRPO Training","local":"part-6-grpo-training","sections":[{"title":"Training Configuration","local":"training-configuration","sections":[],"depth":3},{"title":"Training Loop","local":"training-loop","sections":[],"depth":3}],"depth":2},{"title":"Part 7: Deployment","local":"part-7-deployment","sections":[{"title":"Saving the Model","local":"saving-the-model","sections":[],"depth":3},{"title":"Push to Hugging Face Hub","local":"push-to-hugging-face-hub","sections":[],"depth":3},{"title":"Using the Trained Model","local":"using-the-trained-model","sections":[],"depth":3}],"depth":2},{"title":"Preventing Reward Hacking","local":"preventing-reward-hacking","sections":[],"depth":2},{"title":"Summary","local":"summary","sections":[],"depth":2},{"title":"Next Steps","local":"next-steps","sections":[],"depth":2},{"title":"Related Resources","local":"related-resources","sections":[],"depth":2}],"depth":1}"><!-- HEAD_svelte-u9bgzb_END --> <p></p> <div class="items-center shrink-0 min-w-[100px] max-sm:min-w-[50px] justify-end ml-auto flex" style="float: right; margin-left: 10px; display: inline-flex; position: relative; z-index: 10;"><div class="inline-flex rounded-md max-sm:rounded-sm"><button class="inline-flex items-center gap-1 h-7 max-sm:h-7 px-2 max-sm:px-1.5 text-sm font-medium text-gray-800 border border-r-0 rounded-l-md max-sm:rounded-l-sm border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-live="polite"><span class="inline-flex items-center justify-center rounded-md p-0.5 max-sm:p-0 hover:text-gray-800 dark:hover:text-gray-200"><svg class="sm:size-3.5 size-3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg></span> <span>Copy page</span></button> <button class="inline-flex items-center justify-center w-6 max-sm:w-5 h-7 max-sm:h-7 disabled:pointer-events-none text-sm text-gray-500 hover:text-gray-700 dark:hover:text-white rounded-r-md max-sm:rounded-r-sm border border-l transition border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-haspopup="menu" aria-expanded="false" aria-label="Open copy menu"><svg class="transition-transform text-gray-400 overflow-visible sm:size-3.5 size-3 rotate-0" width="1em" height="1em" viewBox="0 0 12 7" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M1 1L6 6L11 1" stroke="currentColor"></path></svg></button></div> </div> <h1 class="relative group"><a id="rl-training-with-openenv-2048-game" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#rl-training-with-openenv-2048-game"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>RL Training with OpenEnv: 2048 Game</span></h1> <p data-svelte-h="svelte-tu0igi">This tutorial covers training a language model to play the 2048 game using | |
| reinforcement learning with GRPO (Group Relative Policy Optimization).</p> <blockquote class="note" data-svelte-h="svelte-18ku02z"><p><strong>Time</strong>: ~45 minutes | <strong>Difficulty</strong>: Advanced | <strong>GPU Required</strong>: Yes (T4 or better)</p></blockquote> <h2 class="relative group"><a id="what-youll-learn" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#what-youll-learn"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>What You’ll Learn</span></h2> <ul data-svelte-h="svelte-15itk3r"><li><strong>Model Setup</strong>: Load and configure LLMs with Unsloth for efficient RL</li> <li><strong>Environment Connection</strong>: Connect to the 2048 OpenEnv environment</li> <li><strong>Reward Design</strong>: Create effective reward functions</li> <li><strong>GRPO Training</strong>: Train models with reinforcement learning</li> <li><strong>Deployment</strong>: Save and deploy trained models</li></ul> <h2 class="relative group"><a id="prerequisites" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#prerequisites"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Prerequisites</span></h2> <p data-svelte-h="svelte-1dpktxz">Before starting this tutorial, you should have completed the | |
| <a href="index">Getting Started</a> series to understand:</p> <ul data-svelte-h="svelte-n9kbo0"><li>How OpenEnv environments work</li> <li>The reset/step/state API pattern</li> <li>How to connect to environments</li></ul> <p data-svelte-h="svelte-8dxgej">You’ll also need:</p> <ul data-svelte-h="svelte-1xz821d"><li>A GPU (free T4 on Google Colab works)</li> <li>Basic understanding of PyTorch</li> <li>~30 minutes for training</li></ul> <h2 class="relative group"><a id="part-1-environment-setup" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#part-1-environment-setup"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Part 1: Environment Setup</span></h2> <h3 class="relative group"><a id="installation" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#installation"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Installation</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-bash "><!-- HTML_TAG_START --><span class="hljs-comment"># Install required packages</span> | |
| !pip install -q unsloth openenv trl | |
| <span class="hljs-comment"># For Google Colab, also run:</span> | |
| !pip install -q <span class="hljs-string">"unsloth[colab-new] @ git+https://github.com/unslothai/unsloth.git"</span><!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="imports" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#imports"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Imports</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">import</span> torch | |
| <span class="hljs-keyword">from</span> dataclasses <span class="hljs-keyword">import</span> dataclass | |
| <span class="hljs-keyword">from</span> typing <span class="hljs-keyword">import</span> <span class="hljs-type">List</span>, <span class="hljs-type">Optional</span>, <span class="hljs-type">Dict</span>, <span class="hljs-type">Any</span> | |
| <span class="hljs-keyword">import</span> random | |
| <span class="hljs-comment"># Check GPU availability</span> | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"GPU Available: <span class="hljs-subst">{torch.cuda.is_available()}</span>"</span>) | |
| <span class="hljs-keyword">if</span> torch.cuda.is_available(): | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"GPU: <span class="hljs-subst">{torch.cuda.get_device_name(<span class="hljs-number">0</span>)}</span>"</span>) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Memory: <span class="hljs-subst">{torch.cuda.get_device_properties(<span class="hljs-number">0</span>).total_memory / <span class="hljs-number">1e9</span>:<span class="hljs-number">.1</span>f}</span> GB"</span>)<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="part-2-model-configuration" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#part-2-model-configuration"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Part 2: Model Configuration</span></h2> <p data-svelte-h="svelte-1xm4bsy">We use Unsloth for memory-efficient training with LoRA adapters.</p> <h3 class="relative group"><a id="configuration-classes" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#configuration-classes"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Configuration Classes</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-meta">@dataclass</span> | |
| <span class="hljs-keyword">class</span> <span class="hljs-title class_">ModelConfig</span>: | |
| <span class="hljs-string">"""Configuration for loading LLM models."""</span> | |
| model_name: <span class="hljs-built_in">str</span> = <span class="hljs-string">"unsloth/Qwen2.5-1.5B"</span> | |
| max_seq_length: <span class="hljs-built_in">int</span> = <span class="hljs-number">768</span> | |
| load_in_4bit: <span class="hljs-built_in">bool</span> = <span class="hljs-literal">True</span> | |
| dtype: <span class="hljs-type">Optional</span>[<span class="hljs-built_in">str</span>] = <span class="hljs-literal">None</span> <span class="hljs-comment"># Auto-detect</span> | |
| <span class="hljs-meta">@dataclass</span> | |
| <span class="hljs-keyword">class</span> <span class="hljs-title class_">LoRAConfig</span>: | |
| <span class="hljs-string">"""Configuration for LoRA fine-tuning."""</span> | |
| r: <span class="hljs-built_in">int</span> = <span class="hljs-number">16</span> | |
| lora_alpha: <span class="hljs-built_in">int</span> = <span class="hljs-number">32</span> | |
| target_modules: <span class="hljs-type">List</span>[<span class="hljs-built_in">str</span>] = <span class="hljs-literal">None</span> | |
| lora_dropout: <span class="hljs-built_in">float</span> = <span class="hljs-number">0.0</span> | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">__post_init__</span>(<span class="hljs-params">self</span>): | |
| <span class="hljs-keyword">if</span> self.target_modules <span class="hljs-keyword">is</span> <span class="hljs-literal">None</span>: | |
| self.target_modules = [ | |
| <span class="hljs-string">"q_proj"</span>, <span class="hljs-string">"k_proj"</span>, <span class="hljs-string">"v_proj"</span>, <span class="hljs-string">"o_proj"</span>, | |
| <span class="hljs-string">"gate_proj"</span>, <span class="hljs-string">"up_proj"</span>, <span class="hljs-string">"down_proj"</span>, | |
| ]<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="loading-the-model" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#loading-the-model"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Loading the Model</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">from</span> unsloth <span class="hljs-keyword">import</span> FastLanguageModel | |
| <span class="hljs-comment"># Create configurations</span> | |
| model_config = ModelConfig() | |
| lora_config = LoRAConfig() | |
| <span class="hljs-comment"># Load model</span> | |
| model, tokenizer = FastLanguageModel.from_pretrained( | |
| model_name=model_config.model_name, | |
| max_seq_length=model_config.max_seq_length, | |
| load_in_4bit=model_config.load_in_4bit, | |
| dtype=model_config.dtype, | |
| ) | |
| <span class="hljs-comment"># Apply LoRA adapters</span> | |
| model = FastLanguageModel.get_peft_model( | |
| model, | |
| r=lora_config.r, | |
| target_modules=lora_config.target_modules, | |
| lora_alpha=lora_config.lora_alpha, | |
| lora_dropout=lora_config.lora_dropout, | |
| bias=<span class="hljs-string">"none"</span>, | |
| use_gradient_checkpointing=<span class="hljs-string">"unsloth"</span>, | |
| random_state=<span class="hljs-number">42</span>, | |
| ) | |
| <span class="hljs-comment"># Check parameter counts</span> | |
| trainable = <span class="hljs-built_in">sum</span>(p.numel() <span class="hljs-keyword">for</span> p <span class="hljs-keyword">in</span> model.parameters() <span class="hljs-keyword">if</span> p.requires_grad) | |
| total = <span class="hljs-built_in">sum</span>(p.numel() <span class="hljs-keyword">for</span> p <span class="hljs-keyword">in</span> model.parameters()) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Trainable: <span class="hljs-subst">{trainable:,}</span> / <span class="hljs-subst">{total:,}</span> (<span class="hljs-subst">{trainable/total*<span class="hljs-number">100</span>:<span class="hljs-number">.2</span>f}</span>%)"</span>)<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="part-3-the-2048-environment" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#part-3-the-2048-environment"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Part 3: The 2048 Environment</span></h2> <h3 class="relative group"><a id="game-overview" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#game-overview"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Game Overview</span></h3> <p data-svelte-h="svelte-zq8pmv">2048 is a sliding puzzle game where you combine tiles to reach 2048.</p> <p data-svelte-h="svelte-1nta3bs"><strong>Actions:</strong></p> <ul data-svelte-h="svelte-1qt33pe"><li><code>0</code> = UP</li> <li><code>1</code> = RIGHT</li> <li><code>2</code> = DOWN</li> <li><code>3</code> = LEFT</li></ul> <p data-svelte-h="svelte-18ykmm8"><strong>Goal:</strong> Create a tile with value 2048 (or higher!)</p> <h3 class="relative group"><a id="connecting-to-the-environment" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#connecting-to-the-environment"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Connecting to the Environment</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">from</span> envs.openspiel_env <span class="hljs-keyword">import</span> OpenSpielEnv, OpenSpielAction | |
| <span class="hljs-comment"># Connect to 2048 environment</span> | |
| <span class="hljs-comment"># Option 1: From Hub</span> | |
| env = OpenSpielEnv.from_hub(<span class="hljs-string">"openenv/openspiel-env"</span>) | |
| <span class="hljs-comment"># Option 2: From running server</span> | |
| <span class="hljs-comment"># env = OpenSpielEnv(base_url="http://localhost:8000")</span> | |
| <span class="hljs-comment"># Test connection</span> | |
| <span class="hljs-keyword">with</span> env: | |
| result = env.reset() | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Game started!"</span>) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Legal actions: <span class="hljs-subst">{result.observation.legal_actions}</span>"</span>) | |
| <span class="hljs-comment"># Take a test action</span> | |
| action = OpenSpielAction(action_id=<span class="hljs-number">0</span>, game_name=<span class="hljs-string">"2048"</span>) | |
| result = env.step(action) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"After UP: reward=<span class="hljs-subst">{result.reward}</span>, done=<span class="hljs-subst">{result.done}</span>"</span>)<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="board-utilities" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#board-utilities"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Board Utilities</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">import</span> numpy <span class="hljs-keyword">as</span> np | |
| <span class="hljs-keyword">from</span> typing <span class="hljs-keyword">import</span> <span class="hljs-type">List</span> | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">info_state_to_board</span>(<span class="hljs-params">info_state: <span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>], size: <span class="hljs-built_in">int</span> = <span class="hljs-number">4</span></span>) -> <span class="hljs-type">List</span>[<span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>]]: | |
| <span class="hljs-string">"""Convert flat info_state to 2D board."""</span> | |
| <span class="hljs-keyword">return</span> np.array(info_state, dtype=<span class="hljs-built_in">int</span>).reshape(size, size).tolist() | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">render_board</span>(<span class="hljs-params">board: <span class="hljs-type">List</span>[<span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>]]</span>) -> <span class="hljs-built_in">str</span>: | |
| <span class="hljs-string">"""Render board as ASCII string."""</span> | |
| lines = [<span class="hljs-string">"+------"</span> * <span class="hljs-built_in">len</span>(board[<span class="hljs-number">0</span>]) + <span class="hljs-string">"+"</span>] | |
| <span class="hljs-keyword">for</span> row <span class="hljs-keyword">in</span> board: | |
| cells = [<span class="hljs-string">f"<span class="hljs-subst">{v:5d}</span>"</span> <span class="hljs-keyword">if</span> v > <span class="hljs-number">0</span> <span class="hljs-keyword">else</span> <span class="hljs-string">" ."</span> <span class="hljs-keyword">for</span> v <span class="hljs-keyword">in</span> row] | |
| lines.append(<span class="hljs-string">"|"</span> + <span class="hljs-string">" |"</span>.join(cells) + <span class="hljs-string">" |"</span>) | |
| lines.append(<span class="hljs-string">"+------"</span> * <span class="hljs-built_in">len</span>(row) + <span class="hljs-string">"+"</span>) | |
| <span class="hljs-keyword">return</span> <span class="hljs-string">"\n"</span>.join(lines) | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">get_max_tile</span>(<span class="hljs-params">board: <span class="hljs-type">List</span>[<span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>]]</span>) -> <span class="hljs-built_in">int</span>: | |
| <span class="hljs-string">"""Get highest tile value."""</span> | |
| <span class="hljs-keyword">return</span> <span class="hljs-built_in">max</span>(cell <span class="hljs-keyword">for</span> row <span class="hljs-keyword">in</span> board <span class="hljs-keyword">for</span> cell <span class="hljs-keyword">in</span> row)<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="part-4-reward-function-design" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#part-4-reward-function-design"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Part 4: Reward Function Design</span></h2> <p data-svelte-h="svelte-p925wf">The reward function is crucial for RL. We consider:</p> <ol data-svelte-h="svelte-m2sbcp"><li><strong>Success</strong>: Did we reach 2048?</li> <li><strong>Progress</strong>: What’s the highest tile achieved?</li> <li><strong>Code Quality</strong>: Did the generated code execute correctly?</li></ol> <h3 class="relative group"><a id="reward-implementation" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#reward-implementation"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Reward Implementation</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">import</span> math | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">calculate_reward</span>(<span class="hljs-params"> | |
| max_tile: <span class="hljs-built_in">int</span>, | |
| success: <span class="hljs-built_in">bool</span>, | |
| code_error: <span class="hljs-built_in">bool</span> = <span class="hljs-literal">False</span> | |
| </span>) -> <span class="hljs-built_in">float</span>: | |
| <span class="hljs-string">""" | |
| Calculate reward for a 2048 game outcome. | |
| Args: | |
| max_tile: Highest tile achieved (2, 4, 8, ..., 2048) | |
| success: Whether we reached 2048 | |
| code_error: Whether generated code had errors | |
| Returns: | |
| Float reward value | |
| """</span> | |
| <span class="hljs-keyword">if</span> code_error: | |
| <span class="hljs-keyword">return</span> -<span class="hljs-number">0.5</span> <span class="hljs-comment"># Penalty for invalid code</span> | |
| <span class="hljs-keyword">if</span> success: | |
| <span class="hljs-keyword">return</span> <span class="hljs-number">1.0</span> <span class="hljs-comment"># Full reward for winning</span> | |
| <span class="hljs-comment"># Progress reward: log scale from 0 to 0.9</span> | |
| <span class="hljs-keyword">if</span> max_tile > <span class="hljs-number">0</span>: | |
| progress = math.log2(max_tile) / math.log2(<span class="hljs-number">2048</span>) | |
| <span class="hljs-keyword">return</span> <span class="hljs-built_in">min</span>(<span class="hljs-number">0.9</span>, progress) | |
| <span class="hljs-keyword">return</span> <span class="hljs-number">0.0</span> | |
| <span class="hljs-comment"># Test reward function</span> | |
| test_cases = [ | |
| (<span class="hljs-number">2048</span>, <span class="hljs-literal">True</span>, <span class="hljs-literal">False</span>, <span class="hljs-string">"Won!"</span>), | |
| (<span class="hljs-number">1024</span>, <span class="hljs-literal">False</span>, <span class="hljs-literal">False</span>, <span class="hljs-string">"Got to 1024"</span>), | |
| (<span class="hljs-number">512</span>, <span class="hljs-literal">False</span>, <span class="hljs-literal">False</span>, <span class="hljs-string">"Got to 512"</span>), | |
| (<span class="hljs-number">64</span>, <span class="hljs-literal">False</span>, <span class="hljs-literal">False</span>, <span class="hljs-string">"Early game"</span>), | |
| ] | |
| <span class="hljs-keyword">for</span> max_tile, success, error, desc <span class="hljs-keyword">in</span> test_cases: | |
| reward = calculate_reward(max_tile, success, error) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"<span class="hljs-subst">{desc:20s}</span> -> Reward: <span class="hljs-subst">{reward:+<span class="hljs-number">.3</span>f}</span>"</span>)<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="part-5-strategy-generation" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#part-5-strategy-generation"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Part 5: Strategy Generation</span></h2> <p data-svelte-h="svelte-hpwesz">We’ll train the model to generate Python strategy functions.</p> <h3 class="relative group"><a id="prompt-template" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#prompt-template"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Prompt Template</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START -->SYSTEM_PROMPT = <span class="hljs-string">"""You are an expert at playing 2048. Generate a Python function | |
| that takes a board state and returns the best action (0=UP, 1=RIGHT, 2=DOWN, 3=LEFT). | |
| The board is a 4x4 list of integers. Empty cells are 0. | |
| Your function should analyze the board and return an optimal move. | |
| """</span> | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">create_prompt</span>(<span class="hljs-params">board: <span class="hljs-type">List</span>[<span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>]]</span>) -> <span class="hljs-built_in">str</span>: | |
| <span class="hljs-string">"""Create prompt for strategy generation."""</span> | |
| board_str = <span class="hljs-string">"\n"</span>.join(<span class="hljs-built_in">str</span>(row) <span class="hljs-keyword">for</span> row <span class="hljs-keyword">in</span> board) | |
| <span class="hljs-keyword">return</span> <span class="hljs-string">f"""<span class="hljs-subst">{SYSTEM_PROMPT}</span> | |
| Current board: | |
| <span class="hljs-subst">{board_str}</span> | |
| Generate a strategy function: | |
| ```python | |
| def strategy(board): | |
| # Your code here | |
| return action # 0, 1, 2, or 3 | |
| ```"""</span><!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="executing-generated-strategies" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#executing-generated-strategies"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Executing Generated Strategies</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">import</span> ast | |
| <span class="hljs-keyword">from</span> typing <span class="hljs-keyword">import</span> <span class="hljs-type">Callable</span> | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">extract_and_execute_strategy</span>(<span class="hljs-params"> | |
| generated_code: <span class="hljs-built_in">str</span>, | |
| board: <span class="hljs-type">List</span>[<span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>]], | |
| timeout: <span class="hljs-built_in">float</span> = <span class="hljs-number">5.0</span> | |
| </span>) -> <span class="hljs-built_in">tuple</span>[<span class="hljs-built_in">int</span>, <span class="hljs-built_in">bool</span>]: | |
| <span class="hljs-string">""" | |
| Extract and execute a generated strategy function. | |
| Returns: | |
| (action, success): The action to take and whether execution succeeded | |
| """</span> | |
| <span class="hljs-keyword">try</span>: | |
| <span class="hljs-comment"># Extract code block</span> | |
| <span class="hljs-keyword">if</span> <span class="hljs-string">"```python"</span> <span class="hljs-keyword">in</span> generated_code: | |
| code = generated_code.split(<span class="hljs-string">"```python"</span>)[<span class="hljs-number">1</span>].split(<span class="hljs-string">"```"</span>)[<span class="hljs-number">0</span>] | |
| <span class="hljs-keyword">else</span>: | |
| code = generated_code | |
| <span class="hljs-comment"># Parse and validate AST</span> | |
| tree = ast.parse(code) | |
| <span class="hljs-comment"># Execute in sandbox</span> | |
| namespace = {<span class="hljs-string">"board"</span>: board} | |
| <span class="hljs-built_in">exec</span>(<span class="hljs-built_in">compile</span>(tree, <span class="hljs-string">"<strategy>"</span>, <span class="hljs-string">"exec"</span>), namespace) | |
| <span class="hljs-comment"># Call the strategy function</span> | |
| <span class="hljs-keyword">if</span> <span class="hljs-string">"strategy"</span> <span class="hljs-keyword">in</span> namespace: | |
| action = namespace[<span class="hljs-string">"strategy"</span>](board) | |
| <span class="hljs-keyword">if</span> action <span class="hljs-keyword">in</span> [<span class="hljs-number">0</span>, <span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>]: | |
| <span class="hljs-keyword">return</span> action, <span class="hljs-literal">True</span> | |
| <span class="hljs-keyword">return</span> <span class="hljs-number">0</span>, <span class="hljs-literal">False</span> <span class="hljs-comment"># Default action on failure</span> | |
| <span class="hljs-keyword">except</span> Exception <span class="hljs-keyword">as</span> e: | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Strategy execution error: <span class="hljs-subst">{e}</span>"</span>) | |
| <span class="hljs-keyword">return</span> <span class="hljs-number">0</span>, <span class="hljs-literal">False</span><!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="part-6-grpo-training" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#part-6-grpo-training"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Part 6: GRPO Training</span></h2> <p data-svelte-h="svelte-52iyj9">GRPO (Group Relative Policy Optimization) is optimized for language models.</p> <h3 class="relative group"><a id="training-configuration" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#training-configuration"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Training Configuration</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">from</span> trl <span class="hljs-keyword">import</span> GRPOConfig, GRPOTrainer | |
| grpo_config = GRPOConfig( | |
| <span class="hljs-comment"># Learning rate</span> | |
| learning_rate=<span class="hljs-number">2e-6</span>, | |
| <span class="hljs-comment"># Batch sizes</span> | |
| per_device_train_batch_size=<span class="hljs-number">4</span>, | |
| gradient_accumulation_steps=<span class="hljs-number">4</span>, | |
| <span class="hljs-comment"># Training duration</span> | |
| max_steps=<span class="hljs-number">200</span>, | |
| <span class="hljs-comment"># Memory optimization</span> | |
| bf16=<span class="hljs-literal">True</span>, | |
| gradient_checkpointing=<span class="hljs-literal">True</span>, | |
| <span class="hljs-comment"># Logging</span> | |
| logging_steps=<span class="hljs-number">1</span>, | |
| output_dir=<span class="hljs-string">"./2048_grpo_output"</span>, | |
| report_to=<span class="hljs-string">"none"</span>, | |
| )<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="training-loop" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#training-loop"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Training Loop</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">def</span> <span class="hljs-title function_">train_2048_agent</span>(<span class="hljs-params"> | |
| model, | |
| tokenizer, | |
| env, | |
| config: GRPOConfig, | |
| num_episodes: <span class="hljs-built_in">int</span> = <span class="hljs-number">100</span>, | |
| </span>): | |
| <span class="hljs-string">""" | |
| Train the model to play 2048 using GRPO. | |
| """</span> | |
| <span class="hljs-comment"># Prepare model for training</span> | |
| FastLanguageModel.for_training(model) | |
| training_data = [] | |
| <span class="hljs-keyword">for</span> episode <span class="hljs-keyword">in</span> <span class="hljs-built_in">range</span>(num_episodes): | |
| <span class="hljs-comment"># Reset environment</span> | |
| result = env.reset() | |
| board = info_state_to_board(result.observation.info_state) | |
| episode_reward = <span class="hljs-number">0</span> | |
| steps = <span class="hljs-number">0</span> | |
| <span class="hljs-keyword">while</span> <span class="hljs-keyword">not</span> result.done <span class="hljs-keyword">and</span> steps < <span class="hljs-number">1000</span>: | |
| <span class="hljs-comment"># Generate strategy</span> | |
| prompt = create_prompt(board) | |
| inputs = tokenizer(prompt, return_tensors=<span class="hljs-string">"pt"</span>).to(model.device) | |
| outputs = model.generate( | |
| **inputs, | |
| max_new_tokens=<span class="hljs-number">256</span>, | |
| temperature=<span class="hljs-number">0.7</span>, | |
| do_sample=<span class="hljs-literal">True</span>, | |
| ) | |
| generated = tokenizer.decode(outputs[<span class="hljs-number">0</span>], skip_special_tokens=<span class="hljs-literal">True</span>) | |
| <span class="hljs-comment"># Execute strategy</span> | |
| action, success = extract_and_execute_strategy(generated, board) | |
| <span class="hljs-comment"># Take action in environment</span> | |
| env_action = OpenSpielAction(action_id=action, game_name=<span class="hljs-string">"2048"</span>) | |
| result = env.step(env_action) | |
| <span class="hljs-comment"># Update board</span> | |
| board = info_state_to_board(result.observation.info_state) | |
| episode_reward += result.reward <span class="hljs-keyword">if</span> result.reward <span class="hljs-keyword">else</span> <span class="hljs-number">0</span> | |
| steps += <span class="hljs-number">1</span> | |
| <span class="hljs-comment"># Calculate final reward</span> | |
| max_tile = get_max_tile(board) | |
| final_reward = calculate_reward(max_tile, max_tile >= <span class="hljs-number">2048</span>) | |
| <span class="hljs-comment"># Store for training</span> | |
| training_data.append({ | |
| <span class="hljs-string">"prompt"</span>: prompt, | |
| <span class="hljs-string">"response"</span>: generated, | |
| <span class="hljs-string">"reward"</span>: final_reward, | |
| }) | |
| <span class="hljs-keyword">if</span> episode % <span class="hljs-number">10</span> == <span class="hljs-number">0</span>: | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Episode <span class="hljs-subst">{episode}</span>: Max tile=<span class="hljs-subst">{max_tile}</span>, Reward=<span class="hljs-subst">{final_reward:<span class="hljs-number">.3</span>f}</span>"</span>) | |
| <span class="hljs-keyword">return</span> training_data<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="part-7-deployment" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#part-7-deployment"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Part 7: Deployment</span></h2> <p data-svelte-h="svelte-nuvwd7">After training, save and deploy your model.</p> <h3 class="relative group"><a id="saving-the-model" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#saving-the-model"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Saving the Model</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-comment"># Save LoRA adapters only</span> | |
| model.save_pretrained(<span class="hljs-string">"./2048_strategy_model"</span>) | |
| tokenizer.save_pretrained(<span class="hljs-string">"./2048_strategy_model"</span>) | |
| <span class="hljs-comment"># Save merged model for inference</span> | |
| model.save_pretrained_merged( | |
| <span class="hljs-string">"./2048_strategy_model_merged"</span>, | |
| tokenizer, | |
| save_method=<span class="hljs-string">"merged_16bit"</span>, | |
| )<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="push-to-hugging-face-hub" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#push-to-hugging-face-hub"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Push to Hugging Face Hub</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-comment"># Push to Hub</span> | |
| model.push_to_hub( | |
| <span class="hljs-string">"your-username/2048-strategy-model"</span>, | |
| tokenizer, | |
| save_method=<span class="hljs-string">"merged_16bit"</span>, | |
| private=<span class="hljs-literal">False</span>, | |
| ) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">"Model deployed to: huggingface.co/your-username/2048-strategy-model"</span>)<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="using-the-trained-model" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#using-the-trained-model"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Using the Trained Model</span></h3> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">from</span> transformers <span class="hljs-keyword">import</span> AutoModelForCausalLM, AutoTokenizer | |
| <span class="hljs-comment"># Load trained model</span> | |
| model = AutoModelForCausalLM.from_pretrained(<span class="hljs-string">"your-username/2048-strategy-model"</span>) | |
| tokenizer = AutoTokenizer.from_pretrained(<span class="hljs-string">"your-username/2048-strategy-model"</span>) | |
| <span class="hljs-comment"># Generate strategy</span> | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">get_action</span>(<span class="hljs-params">board: <span class="hljs-type">List</span>[<span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>]]</span>) -> <span class="hljs-built_in">int</span>: | |
| prompt = create_prompt(board) | |
| inputs = tokenizer(prompt, return_tensors=<span class="hljs-string">"pt"</span>) | |
| outputs = model.generate(**inputs, max_new_tokens=<span class="hljs-number">256</span>) | |
| generated = tokenizer.decode(outputs[<span class="hljs-number">0</span>], skip_special_tokens=<span class="hljs-literal">True</span>) | |
| action, _ = extract_and_execute_strategy(generated, board) | |
| <span class="hljs-keyword">return</span> action | |
| <span class="hljs-comment"># Play a game</span> | |
| <span class="hljs-keyword">with</span> OpenSpielEnv.from_hub(<span class="hljs-string">"openenv/openspiel-env"</span>) <span class="hljs-keyword">as</span> env: | |
| result = env.reset() | |
| board = info_state_to_board(result.observation.info_state) | |
| <span class="hljs-keyword">while</span> <span class="hljs-keyword">not</span> result.done: | |
| action = get_action(board) | |
| result = env.step(OpenSpielAction(action_id=action, game_name=<span class="hljs-string">"2048"</span>)) | |
| board = info_state_to_board(result.observation.info_state) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Final max tile: <span class="hljs-subst">{get_max_tile(board)}</span>"</span>)<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="preventing-reward-hacking" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#preventing-reward-hacking"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Preventing Reward Hacking</span></h2> <p data-svelte-h="svelte-1goylmh">Be aware of potential reward hacking strategies:</p> <ol data-svelte-h="svelte-tew79g"><li><strong>Code that modifies rewards</strong> - Run in sandboxed environment</li> <li><strong>Infinite loops</strong> - Set execution timeouts</li> <li><strong>Memory exhaustion</strong> - Limit resource usage</li></ol> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class="language-python "><!-- HTML_TAG_START --><span class="hljs-keyword">import</span> resource | |
| <span class="hljs-keyword">import</span> signal | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">safe_execute</span>(<span class="hljs-params">code: <span class="hljs-built_in">str</span>, board: <span class="hljs-type">List</span>[<span class="hljs-type">List</span>[<span class="hljs-built_in">int</span>]], timeout: <span class="hljs-built_in">float</span> = <span class="hljs-number">5.0</span></span>) -> <span class="hljs-built_in">int</span>: | |
| <span class="hljs-string">"""Execute strategy with safety limits."""</span> | |
| <span class="hljs-keyword">def</span> <span class="hljs-title function_">handler</span>(<span class="hljs-params">signum, frame</span>): | |
| <span class="hljs-keyword">raise</span> TimeoutError(<span class="hljs-string">"Strategy timed out"</span>) | |
| <span class="hljs-comment"># Set timeout</span> | |
| signal.signal(signal.SIGALRM, handler) | |
| signal.alarm(<span class="hljs-built_in">int</span>(timeout)) | |
| <span class="hljs-keyword">try</span>: | |
| <span class="hljs-comment"># Set memory limit (100MB)</span> | |
| resource.setrlimit(resource.RLIMIT_AS, (<span class="hljs-number">100</span> * <span class="hljs-number">1024</span> * <span class="hljs-number">1024</span>, -<span class="hljs-number">1</span>)) | |
| <span class="hljs-comment"># Execute in restricted namespace</span> | |
| namespace = {<span class="hljs-string">"board"</span>: board, <span class="hljs-string">"__builtins__"</span>: {<span class="hljs-string">"len"</span>: <span class="hljs-built_in">len</span>, <span class="hljs-string">"max"</span>: <span class="hljs-built_in">max</span>, <span class="hljs-string">"min"</span>: <span class="hljs-built_in">min</span>}} | |
| <span class="hljs-built_in">exec</span>(code, namespace) | |
| <span class="hljs-keyword">return</span> namespace.get(<span class="hljs-string">"strategy"</span>, <span class="hljs-keyword">lambda</span> b: <span class="hljs-number">0</span>)(board) | |
| <span class="hljs-keyword">finally</span>: | |
| signal.alarm(<span class="hljs-number">0</span>)<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="summary" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#summary"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Summary</span></h2> <p data-svelte-h="svelte-19gohz9">In this tutorial, you learned:</p> <ol data-svelte-h="svelte-ogol81"><li><strong>Model Setup</strong>: Loading LLMs with Unsloth and LoRA</li> <li><strong>Environment Connection</strong>: Using OpenEnv’s 2048 environment</li> <li><strong>Reward Design</strong>: Creating balanced reward functions</li> <li><strong>GRPO Training</strong>: Training with reinforcement learning</li> <li><strong>Deployment</strong>: Saving and sharing trained models</li></ol> <h2 class="relative group"><a id="next-steps" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#next-steps"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Next Steps</span></h2> <ul data-svelte-h="svelte-jr79za"><li>Try different model architectures</li> <li>Experiment with reward function designs</li> <li>Train on other OpenEnv environments</li> <li>Share your trained models on Hugging Face Hub!</li></ul> <h2 class="relative group"><a id="related-resources" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#related-resources"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Related Resources</span></h2> <ul data-svelte-h="svelte-78nb3v"><li><a href="index">OpenEnv Getting Started</a></li> <li><a href="../getting_started/environment-builder">Building Custom Environments</a></li> <li><a href="https://huggingface.co/docs/trl/grpo_trainer" rel="nofollow">GRPO Documentation</a></li> <li><a href="https://github.com/unslothai/unsloth" rel="nofollow">Unsloth Documentation</a></li></ul> <a class="!text-gray-400 !no-underline text-sm flex items-center not-prose mt-4" href="https://github.com/huggingface/openenv/blob/main/docs/source/tutorials/rl-training-2048.md" target="_blank"><svg class="mr-1" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M31,16l-7,7l-1.41-1.41L28.17,16l-5.58-5.59L24,9l7,7z"></path><path d="M1,16l7-7l1.41,1.41L3.83,16l5.58,5.59L8,23l-7-7z"></path><path d="M12.419,25.484L17.639,6.552l1.932,0.518L14.351,26.002z"></path></svg> <span data-svelte-h="svelte-zjs2n5"><span class="underline">Update</span> on GitHub</span></a> <p></p> | |
| <script> | |
| { | |
| __sveltekit_1qwoa43 = { | |
| assets: "/docs/openenv/pr_749/en", | |
| base: "/docs/openenv/pr_749/en", | |
| env: {} | |
| }; | |
| const element = document.currentScript.parentElement; | |
| const data = [null,null]; | |
| Promise.all([ | |
| import("/docs/openenv/pr_749/en/_app/immutable/entry/start.85477f45.js"), | |
| import("/docs/openenv/pr_749/en/_app/immutable/entry/app.51835dc5.js") | |
| ]).then(([kit, app]) => { | |
| kit.start(app, element, { | |
| node_ids: [0, 63], | |
| data, | |
| form: null, | |
| error: null | |
| }); | |
| }); | |
| } | |
| </script> | |
Xet Storage Details
- Size:
- 94 kB
- Xet hash:
- 94ad8df274df05923b16199b40bb0d535274d42cad3ee25b0756ab7b1884536c
·
Xet efficiently stores files, intelligently splitting them into unique chunks and accelerating uploads and downloads. More info.