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bio-posttrain-qwen3-1.7b-dna-rl
mims-harvard/bio-posttrain-qwen3-1.7b-dna-rl
bio-posttrain-qwen3-1.7b-dna-rl is a text generation model from mims-harvard. Use it when you need the model to write or continue text. It is set up for transformers. The card lists the license as apache-2.0.
DNA reinforcement learning (GRPO) checkpoint from How Post-Training Shapes Biological Reasoning Models.
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At a glance
- Task
- Text Generation
- Library
- transformers
- License
- apache-2.0
- Model type
- qwen3
- Access
- Public
- Created
- Jun 22, 2026
- Updated
- Jun 22, 2026
- SHA
- 3409da28
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Base models
Model card
From the Hugging Face model README
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.
- Task
- Text Generation
- Library
- transformers
- Type
- qwen3
- License
- apache-2.0
- Created
- Jun 22, 2026
- Updated
- Jun 22, 2026