Replace the base model deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B to Qwen/Qwen2.5-1.5B-Instruct in GRPO #198
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I found that the distilled small model deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B:
<think></think> <answer></answer>format.A possible reason could be that distilling a small model from a large model might cause it to lose its ability to follow specific formats.
Therefore, I switched to Qwen/Qwen2.5-1.5B-Instruct and found that it adheres to the format well. The comparison of their format rewards is shown below—hope this helps!