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Qwen3 8B Ins Draft OPD

This repository contains Qwen3-8B-Ins-Draft-OPD, a draft model for speculative decoding.

KindOtherBase modelz-lab/Qwen3-8B-DFlash-b16VersionRevision d38409dPublisher@bingyang-leiCgrade

Model source

Kind
Other
File size
1.95 GB
Base model
z-lab/Qwen3-8B-DFlash-b16
Version
vRevision d38409d
Updated
Oct 22, 2026
Publisher
@bingyang-lei
Downloads
175
Parameters
8B
Tasks
Text generation
Source
Hugging Face

Source description

Qwen3-8B-Ins-Draft-OPD

This repository contains Qwen3-8B-Ins-Draft-OPD, a draft model for speculative decoding.

The model is post-trained from z-lab/Qwen3-8B-DFlash-b16. It keeps the overall architecture and inference interface consistent with the original DFlash draft model, while further adapting the draft model through the Draft-OPD post-training method.

Model Details

  • Target Model: Qwen3-8B(enable_thinking=False)
  • Model type: Draft model for speculative decoding
  • Architecture: Same as the original DFlash draft model
  • Post-training method: Draft-OPD

Performance and Training Method

Draft-OPD (On-Policy Distillation) trains speculative draft models with on-policy target feedback. Instead of only learning from fixed target-generated trajectories, the drafter is supervised on draft-induced states exposed during speculative verification, including the positions where draft proposals are rejected.

Experiments show that Draft-OPD achieves over 5x lossless acceleration for thinking models across diverse tasks, improving over previous methods like EAGLE-3 and DFlash.

For detailed training procedures, evaluation settings, and performance results, please refer to the paper.

Citation

If you find our work useful, please consider citing our paper:

@misc{lei2026draftopdonpolicydistillationspeculative,
      title={Draft-OPD: On-Policy Distillation for Speculative Draft Models}, 
      author={Haodi Lei and Yafy Li and Haoran Zhang and Shunkai Zhang and Qianjia Cheng and Xiaoye Qu and Ganqu Cui and Bowen Zhou and Ning Ding and Yun Luo and Yu Cheng},
      year={2026},
      eprint={2605.29343},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2605.29343}, 
}

Sources

1 source
Hugging FacePrimaryVersion d38409dec1518aec367eaaaea3ddb38a39e94ae3
huggingface.co/bingyang-lei/Qwen3-8B-Ins-Draft-OPD/tree/d38409dec1518aec367eaaaea3ddb38a39e94ae3

Verified Sep 27

Model artifacts

1 artifact

model.safetensors

safetensors · 1.95 GB · SHA-256 9807a3661469…ab2a · Hugging Face

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Source excerpts

3 excerpts

--- base_model: - z-lab/Qwen3-8B-DFlash-b16 license: mit pipeline_tag: text-generation library_name: transformers --- # Qwen3-8B-Ins-Draft-OPD This repository contains **Qwen3-8B-Ins-Draft-OPD**, a draft model for speculative decoding. The model is post-trained from [`z-lab/Qwen3-8B-DFlash-b16`](https://huggingface.co/z-lab/Qwen3-8B-DFlash-b16). It keeps the overall architecture and inference interface consistent with the original DFlash draft model, while further adapting the draft model through the Draft-OPD post-training method. - **Paper:** [Draft-OPD: On-Policy Distillation for Speculative Draft Models](https://huggingface.co/papers/2605.29343) - **Project Page:** [https://www.haodilei.top/draft-opd/](https://www.haodilei.top/draft-opd/) - **Repository:** [https://github.com/bingyang-lei/Draft-OPD](https://github.com/bingyang-lei/Draft-OPD) ## Model Details - **Target Model:** [`Qwen3-8B(enable_thinking=False)`](https://huggingface.co/Qwen/Qwen3-8B) - **Model type:** Draft model for speculative decoding - **Architecture:** Same as the original DFlash draft model - **Post-training method:** Draft-OPD ## Performance and Training Method Draft-OPD (On-Policy Distillation) trains speculative draft models with on-policy target feedback. Instead of only learning from fixed target-generated trajectories, the drafter is supervised on draft-induced states exposed during speculative verification, including the positions where draft proposals are rejected. Experiments show that Draft-OPD achieves over 5x lossless acceleration for thinking models across diverse tasks, improving over previous methods like EAGLE-3 and DFlash. For detailed training procedures, evaluation settings, and performance results, please refer to the paper. ## Citation If you find our work useful, please consider citing our paper: ```bibtex @misc{lei2026draftopdonpolicydistillationspeculative, title={Draft-OPD: On-Policy Distillation for Speculative Draft Models}, author={Haodi Lei and Yafy Li and Haoran Zhang and Shunkai Zhang and Qianjia Cheng and Xiaoye Qu and Ganqu Cui and Bowen Zhou and Ning Ding and Yun Luo and Yu Cheng}, year={2026}, eprint={2605.29343}, archivePrefix={arXiv}, primaryClass={cs.CL}, url={https://arxiv.org/abs/2605.29343}, } ```

Source context: 175 downloads · 0 likes · Pipeline text-generation · Library transformers · Repo bingyang-lei/Qwen3-8B-Ins-Draft-OPD

Source context: 16 downloads · 0 likes · Pipeline text-generation · Library transformers · Repo bingyang-lei/Qwen3-8B-Ins-Draft-OPD