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--- |
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datasets: |
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- LucidityAI/Astral-1.5-Post-Training-Dataset-SFT |
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- LucidityAI/Astral-1.5-Post-Training-Dataset-CRLFT |
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language: |
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- en |
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--- |
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# Astral 1.5 4B |
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Astral 1.5 4B is a updated version of the Astral 4B model, trained for STEM tasks and agentic usage. |
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The model was trained on our Astral-1.5-Post-Training-SFT and Astral-1.5-Post-Training-CRLFT datasets. |
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## Comparisons |
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When asked for a TailwindCSS HTML page for a photo editing software models gave the following (zero-shot responses): |
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Qwen3 4B 2507 Thinking (8101 tokens used) |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/QdZB10AELDKVN-N06hrvZ.png" width="300" height="300" /> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/wKgkEt9iUpCJFdnBIZ_Kr.png" width="300" height="300" /> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/MiYP2g38wdJjQZyDHSRtz.png" width="300" height="300" /> |
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Astral 1.5 4B (6088 tokens used) |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/zq-L7jDRhKAcuYQVn_KeQ.png" width="300" height="300" /> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/U9ZOEYv0EhsOxof1cTenC.png" width="300" height="300" /> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/4dzf12UFlQRGF_YTNasMc.png" width="300" height="300" /> |
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GPT-5.2 |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/RI-hntpKSYXmZiPXN48q_.png" width="300" height="300" /> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/Kci7Xs9dFDz93P9ouxhLq.png" width="300" height="300" /> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/650707344a8839a8bd85ae2f/FstCN0MeL7I6lFzgkKfVK.png" width="300" height="300" /> |
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## Usage |
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You may utilize the following chat template to do regular chat completions with the model: |
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``` |
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<|im_start|>user |
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What is the capital of France? |
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<|im_end|> |
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<|im_start|>assistant |
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<think> |
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CORRECT: |
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The |
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``` |
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or to use it as an agent, you must prefill `<think>Agent mode is on</think>` like so: |
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``` |
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<|im_start|>user |
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What is the capital of France? |
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<|im_end|> |
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<|im_start|>assistant |
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<think> |
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Agent mode is on |
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</think> |
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``` |
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