Prefix Teach, Suffix Fade: Local Teachability Collapse in Strong-to-Weak On-Policy Distillation

Kaiyuan Liu, Ziyuan Zhuang, Yang Bai, Bing Wang, Rongxiang Weng, Jieping Ye

By Callan Zhang · May 13, 2026 · Editorial standards →

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Source: arXiv cs.CL