| task_categories: | |
| - text-generation | |
| language: | |
| - en | |
| # ReOPD Prefix Pool | |
| This repository contains a prefix pool dataset from the paper [Multi-Turn On-Policy Distillation with Prefix Replay](https://huggingface.co/papers/2607.04763). | |
| ReOPD (Replayed-Prefix On-Policy Distillation) distills a teacher agent into a student **without environment interaction during student training**: the student acts on prefixes replayed from pre-collected teacher trajectories, while the teacher supplies dense per-step supervision. The prefix pool is built from the teacher's RL rollouts with a step-decaying sampling schedule (`p_t ∝ κ^t`, κ = 0.6), favoring early, low-shift prefixes. It matches or improves online OPD accuracy with **zero tool calls** and **4–9× faster rollouts**. | |
| - Project page: https://baohaoliao.github.io/ReOPD/ | |
| - Code: https://github.com/BaohaoLiao/ReOPD | |
| - Hugging Face collection: https://huggingface.co/collections/baohao/reopd | |
| ## Sample usage | |
| From the [Github repository](https://github.com/BaohaoLiao/ReOPD): | |
| Download the prefix pool: | |
| ```bash | |
| hf download baohao/Math_Qwen3-8B_SFT-RL_Prefix --repo-type dataset --local-dir /data/pool | |
| ``` | |
| Then use it as `PROMPT_DATA` in the ReOPD distillation script: | |
| ```bash | |
| TEACHER=qwen3-8b STUDENT=qwen3-4b \ | |
| TEACHER_MODEL_PATH=/ckpt/teacher_hf \ | |
| HF_CHECKPOINT=/ckpt/student_hf \ | |
| REF_LOAD=/ckpt/student_torch_dist \ | |
| PROMPT_DATA=/data/pool/train.jsonl \ | |
| SAVE_DIR=/runs/reopd_8b_to_4b \ | |
| bash scripts/train/reopd_math.sh | |
| ``` |