LLM-as-a-Coach turns judge feedback into transferable experiential knowledge
iScienceLuvr · x · 2026-07-21
The paper proposes Experiential Learning (EL), which turns the usual LLM-as-a-Judge setup into an LLM-as-a-Coach.
Instead of collapsing feedback into a scalar score, the coach distills its assessment of each on-policy response into transferable experiential knowledge. That knowledge conditions a teacher model and is then internalized by the policy through on-policy context distillation. The authors report that, compared with standard rubric-based RL, EL improves held-out and unseen open-ended tasks, generalizes better beyond the training distribution, and helps mitigate reward hacking.
The screenshot also shows the paper’s high-level claim: richer, higher-bandwidth feedback preserves fine-grained preferences among high-quality responses and works across two policy families.
Related event: Microsoft Proposes LLM-as-a-Coach for Non-Verifiable Tasks(4 posts)→
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