license, base_model, tags, library_name

license	base_model	tags	library_name
apache-2.0	Qwen/Qwen3-1.7B	biology bio-posttrain dna-rl dna	transformers

Bio-posttrain Qwen3-1.7B DNA RL

DNA reinforcement learning (GRPO) checkpoint from How Post-Training Shapes Biological Reasoning Models.

Model details

• Base model: Qwen/Qwen3-1.7B
• DNA encoder: Evo2 evo2_1b_base (frozen; not included)
• Embedding layer: blocks.20.mlp.l3
• SFT pool: sft256 / LoRA rank 16
• GRPO LoRA: rank 16, alpha 32
• Checkpoint: step 1156

This repo contains the merged text LLM plus dna_projection.pt.

Loading

Same layout as the DNA SFT model — see bio-posttrain-qwen3-1.7b-dna-sft.

Collection

Part of the Bio-posttrain collection.