Evidence record 15305 · automatically gathered

β-OPSD: Deriving with Policy Optimization, Training with Self-Distillation

On-policy self-distillation (OPSD) is a promising approach to improve reasoning language models, but it remains brittle in practice: making it work reliably often requires substantial engineering effort. We identify a structural source of this difficulty: vanilla OPSD is precisely the β=1 member of a broader policy-optimization family, where β weights the KL penalty anchoring the student to a reference policy. This equivalence turns β from an implicit value fixed at one into a controllable regul

Record details

Published: 29 July 2026
Source: HuggingFace Daily Papers
Category: Research
Topics: Regulation · Children & education
Retrieved: 1 August 2026

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ethics.ai (29 July 2026), “β-OPSD: Deriving with Policy Optimization, Training with Self-Distillation,” evidence record 15305, https://ethics.ai/record/15305 (originally published by HuggingFace Daily Papers).

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