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  <p align="center">
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- <img src="img/img_logo.png" alt="ReasonLite" width="200">
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  </p>
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- ## Introduction
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  * **ReasonLite is an ultra-lightweight math reasoning model.** With only 0.6B parameters, it leverages **high-quality data distillation** to achieve performance comparable to models over 10× its size, such as Qwen3-8B, **reaching 75.2 on AIME24 and extending the scaling law of small models.**
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- * The project is fully open-source, including **model weights**, **training scripts**, **training data**, and the **data synthesis + filtering pipeline**.
 
 
 
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  <p align="center">
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- <img src="img/img_acc.png" alt="ReasonLite" height="500">
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  </p>
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- ## Model
 
 
 
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  The model is trained in **two progressive distillation stages**.
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  First, short-CoT data is used to distill **Qwen3-0.6B** into **AMD-0.6B-Turbo**, improving **AIME24 accuracy from 11.0 → 57.1**.
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  Then, long-CoT data is used to obtain **AMD-0.6B**, further boosting accuracy to **75.2**.
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- <p align="center">
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- <img src="img/img_model.png" alt="ReasonLite" height="500">
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- </p>
 
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- **Evaluation Results**: We evaluate model performance on math reasoning tasks.
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- - **avg@16**: The average accuracy over 16 independently generated answers.
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- - **pass@8**: The probability that at least one correct answer appears among 8 generated samples.
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  | Model | Parameters | AMC23 avg@16 | AMC23 pass@8 | AIME25 avg@16 | AIME25 pass@8 | AIME24 avg@16 | AIME24 pass@8 |
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  |---------------------------|------------|-------------|-------------|---------------|---------------|---------------|---------------|
@@ -44,204 +64,25 @@ Then, long-CoT data is used to obtain **AMD-0.6B**, further boosting accuracy to
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  | ReasonLite-0.6B-Turbo | 0.6B | 81.6 | 99.3 | 42.7 | 69.2 | 57.1 | 79.6 |
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  | **ReasonLite-0.6B** | **0.6B** | **95.2** | **100** | **62.9** | **84.1** | **75.2** | **90.2** |
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- **Model Link**
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- | Model | Description | AIME24 | Link |
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- | ------------------------- | ----------------------------------------------| ------ | ---- |
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- | **amd/ReasonLite-0.6B-Turbo** | Short CoT balancing performance and efficiency | 57.1 | [🤗 HuggingFace](https://huggingface.co/amd/ReasonLite-0.6B-Turbo) |
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- | **amd/ReasonLite-0.6B** | Long CoT for high performance | 75.2 | [🤗 HuggingFace](https://huggingface.co/amd/ReasonLite-0.6B) |
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-
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- ## Dataset
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- * A total of **343K math problems** originated from [Polaris](https://huggingface.co/datasets/POLARIS-Project/Polaris-Dataset-53K) and [OpenMathReasoni](https://huggingface.co/datasets/nvidia/ngOpenMathReasoni).
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- * Using the **GPT-OSS** model as the teacher, **9.1M** model-generated raw answers were collected under both medium and high reasoning modes.
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- * Pseudo-labels are created by majority voting over the model outputs.
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- * Finally, **6.1M samples** were retained, including **4.3M medium-level** and **1.8M high-level** reasoning data.
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-
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- <p align="center">
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- <img src="img/img_data.png" alt="ReasonLite" height="500">
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- </p>
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-
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- **Dataset Link**
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  | Dataset | Description | Size | Link |
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  | ---------------------- | ------ |---- | ---- |
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  | **amd/ReasonLite-Dataset** | Short CoT | 4.3M | [🤗 HuggingFace](https://huggingface.co/datasets/amd/ReasonLite-Dataset/viewer/default/medium) |
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- | **amd/ReasonLite-Dataset** | Long CoT | 1.8M | [🤗 HuggingFace](https://huggingface.co/datasets/amd/ReasonLite-Dataset/viewer/default/high) |
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-
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-
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- ## Setup Environment
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-
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- Docker:
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-
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- ```bash
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- # Recommended ROCm Docker
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- rocm/vllm-dev:open-mi300-08052025
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-
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- # Recommended CUDA Docker (latest vLLM)
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- docker.io/vllm/vllm-openai:latest
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- ```
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-
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- Install Python packages for data synthesis and evaluation:
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-
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- ```bash
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- pip install -r requirements.txt
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- ```
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-
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- ## Model Training
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-
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- This project uses [open-r1](https://github.com/huggingface/open-r1?tab=readme-ov-file#sft-distillation) as the training codebase, but you can use any other training framework as well.
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- Below are example launch scripts and YAML configurations used in our experiments.
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-
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- ```
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- # Stage 1 SFT
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-
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- # Example training script:
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- train/stage1.sh
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-
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- # Example YAML config:
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- train/config_stage1.yaml
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-
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-
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- # Stage 2 SFT
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-
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- # Example training script:
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- train/stage2.sh
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-
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- # Example YAML config:
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- train/config_stage2.yaml
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- ```
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-
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- ## Model Evaluation
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-
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- Example for evaluating **ReasonLite-0.6B on AIME24**. The evaluation scripts are based on [DeepMath](https://github.com/zwhe99/DeepMath).
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-
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- ```bash
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- cd eval
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- python3 start.py -c config/eval.yaml
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- ```
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-
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- ## Data Generation Pipeline
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-
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- You will need to edit the configuration file `config/oss.yaml`, or create a new one based on your own needs.
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- Then you may run through the full pipeline as follows.
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-
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- ### Start vLLM Server
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-
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- ```bash
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- python3 vllm_start.py -c config/oss.yaml
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- ```
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-
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- ### Synthetic Data
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- **Generate model answers**
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- ```bash
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- python3 infer.py -c config/oss.yaml -m infer
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- ```
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-
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- ### Pseudo-Labels via Voting (Optional)
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-
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- **Obtain pseudo-labels through majority voting**
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-
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- ```bash
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- python3 infer.py -c config/oss.yaml -m vote
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- ```
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-
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- ### Judging Answer Correctness
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- **Judge correctness using provided labels**
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-
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- ```bash
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- python3 infer.py -c config/oss.yaml -m judge
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- ```
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-
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- **Judge correctness using pseudo-labels** (requires running `vote` first)
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-
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- ```bash
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- python3 infer.py -c config/oss.yaml -m judge_vote
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- ```
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-
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- ### Filtering and Converting to Training Format
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-
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- **Filter out incorrect solutions and convert the correct ones to training format.**
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- Specify the path to the judged data:
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-
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- ```bash
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- python3 utils/saving_to_training_format.py -d path/to/judged/data.jsonl
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- ```
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-
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- ### Directory Structure for Data Storage
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-
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- ```
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- datas/
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- └── <experiment_name>/
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- ├── info.jsonl # input prompts
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- ├── answer_origin/ # raw generations
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- │ └── <timestamp>/
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- │ └── 0_1.jsonl
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- ├── answer_judge/ # judged generations
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- │ └── <timestamp>/
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- │ └── 0_1.jsonl
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- ├── vote/ # majority votes per prompt
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- │ └── <timestamp>/
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- │ └── 0_1.jsonl
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- └── answer_judge_vote/ # judged using vote labels
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- └── <timestamp>/
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- └── 0_1.jsonl
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- ```
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-
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- ### JSONL Examples
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-
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- #### info.jsonl
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-
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- The files `info.jsonl` and `vote/<timestamp>/0_1.jsonl` follow this format:
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-
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- ```jsonl
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- {
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- "prompt": "Solve the equation (x^2 - x - 2 = 0).",
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- "expected_answer": "5",
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- "index": "pol:0",
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- "vote": {"x=2,-1": 5, "x=2": 1} // Only in vote/<timestamp>/0_1.jsonl
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- }
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- ```
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-
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- * `prompt` contains the math problem
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- * `expected_answer` is the ground-truth label
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- * `index` is the global ID using the format `"dataset_name:index"`
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- * `vote` shows the voting results (only in vote files)
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-
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- #### Intermediate Result JSONL
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-
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- Files under
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- `answer_origin/<timestamp>/0_1.jsonl`,
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- `answer_judge/<timestamp>/0_1.jsonl`,
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- `answer_judge_vote/<timestamp>/0_1.jsonl`
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- follow this format:
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-
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- ```jsonl
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- {
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- "info": "<input info from info.jsonl>",
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- "index": "pol:0_3",
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- "model_input": "<full input ...>",
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- "model_output": "<full output with input prepended ...>",
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- "prompt": "The front tires of a car wear out after 25,000 km, ...",
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- "answer": "<model output ...>",
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- "judge": true // Only in answer_judge and answer_judge_vote
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- }
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- ```
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-
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- * Files under `answer_origin` contain raw model trajectories
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- * `answer_judge` and `answer_judge_vote` add the boolean `judge` flag indicating correctness
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-
237
- ## Citation
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-
239
- ```
240
  @misc{reasonlite2025,
241
- title = {ReasonLite: An Ultra-Lightweight 0.6B Reasoning Model},
242
- author = {An, Zihao and Chen, Chushi and Liu, Ziqiong and Li, Dong and Barsoum, Emad},
243
- year = {2025},
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- url = {https://github.com/amd/ReasonLite},
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- note = {Open-source project}
246
  }
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  ```
 
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+ ---
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+ license: apache-2.0
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+ ---
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+
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+
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+
7
  <p align="center">
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+ <img src="https://cdn-uploads.huggingface.co/production/uploads/66a056d0229269a861ac1245/9xXXms4ub9dzbcsN1IGqq.png" alt="ReasonLite" width="200">
9
  </p>
10
 
11
+ <p align="center">
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+ <a href="https://github.com/AMD-AIG-AIMA/ReasonLite"><b>GitHub</b></a> |
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+ <a href="https://huggingface.co/datasets/amd/ReasonLite-Dataset"><b>Dataset</b></a> |
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+ <b>Blog</b></a>
15
+
16
+ </p>
17
 
 
18
 
19
  * **ReasonLite is an ultra-lightweight math reasoning model.** With only 0.6B parameters, it leverages **high-quality data distillation** to achieve performance comparable to models over 10× its size, such as Qwen3-8B, **reaching 75.2 on AIME24 and extending the scaling law of small models.**
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+
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+ * 🔥 **Best-performing 0.6B reasoning model**
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+ * 🔓 Fully open-source — weights, scripts, datasets, synthesis pipeline
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+ * ⚙️ Distilled in two stages for both **efficiency** and **high performance**
24
 
25
  <p align="center">
26
+ <img src="https://cdn-uploads.huggingface.co/production/uploads/66a056d0229269a861ac1245/2VZPy7mlgpq9vFvwDc00Q.png"" alt="ReasonLite" height="500">
27
  </p>
28
 
29
+
30
+ ---
31
+
32
+ # 🚀 Model
33
 
34
  The model is trained in **two progressive distillation stages**.
35
  First, short-CoT data is used to distill **Qwen3-0.6B** into **AMD-0.6B-Turbo**, improving **AIME24 accuracy from 11.0 → 57.1**.
36
  Then, long-CoT data is used to obtain **AMD-0.6B**, further boosting accuracy to **75.2**.
37
 
38
+ | Model | Description | AIME24 | Link |
39
+ | ------------------------- | ----------------------------------------------| ------ | ---- |
40
+ | **amd/ReasonLite-0.6B-Turbo** | Short CoT balancing performance and efficiency | 57.1 | [🤗 HuggingFace](https://huggingface.co/amd/ReasonLite-0.6B-Turbo) |
41
+ | **amd/ReasonLite-0.6B** | Long CoT for high performance | 75.2 | [🤗 HuggingFace](https://huggingface.co/amd/ReasonLite-0.6B) |
42
 
43
+ ---
44
 
45
+ # 📊 Evaluation Results
46
 
47
+ **Metrics**
 
 
48
 
49
+ * **avg@16** — average accuracy from 16 sampled answers
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+ * **pass@8** — probability at least one correct answer appears among 8 samples
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  | Model | Parameters | AMC23 avg@16 | AMC23 pass@8 | AIME25 avg@16 | AIME25 pass@8 | AIME24 avg@16 | AIME24 pass@8 |
53
  |---------------------------|------------|-------------|-------------|---------------|---------------|---------------|---------------|
 
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  | ReasonLite-0.6B-Turbo | 0.6B | 81.6 | 99.3 | 42.7 | 69.2 | 57.1 | 79.6 |
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  | **ReasonLite-0.6B** | **0.6B** | **95.2** | **100** | **62.9** | **84.1** | **75.2** | **90.2** |
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+ ---
 
 
 
 
 
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+ # 📚 Dataset
 
 
 
 
 
 
 
 
 
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  | Dataset | Description | Size | Link |
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  | ---------------------- | ------ |---- | ---- |
74
  | **amd/ReasonLite-Dataset** | Short CoT | 4.3M | [🤗 HuggingFace](https://huggingface.co/datasets/amd/ReasonLite-Dataset/viewer/default/medium) |
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+ | **amd/ReasonLite-Dataset** | Long Cot | 1.8M | [🤗 HuggingFace](https://huggingface.co/datasets/amd/ReasonLite-Dataset/viewer/default/high) |
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ ---
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+ # 📌 Citation
 
 
 
 
 
 
 
 
 
 
 
 
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81
+ ```bibtex
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  @misc{reasonlite2025,
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+ title={ReasonLite: Ultra-Lightweight Math Reasoning Model},
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+ author={AMD AI Lab},
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+ year={2025},
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+ url={https://huggingface.co/amd/ReasonLite-0.6B}
 
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  }
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  ```