Post-training order determines how well language models learn next

Controlled Qwen3 experiments show that supervised warm-up, teacher adaptation and distillation order materially affect later reasoning gains.

Top University
Emre Can Acikgoz · Yang Li · Zeyu Leo Liu · Srijan Bansal · Dilek Hakkani-Tür · Shafiq Joty · +1 more

Salesforce AI Research · UIUC

Research Digest··3 min read
Acikgoz et al.

The authors first tested OPD across nine Qwen3 student-teacher pairs, covering parameter-count ratios from 2x to 53x.

Why this paper

From UIUC and Salesforce AI Research

In one line

In LLM post-training, a stage that improves the current model can make the next stage less effective.

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