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Group GRPO reward normalization by prompt instead of reshaping the batch - #2

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FunJim wants to merge 2 commits into
mainfrom
fix/grpo-reward-normalization-group-collapse
Open

Group GRPO reward normalization by prompt instead of reshaping the batch#2
FunJim wants to merge 2 commits into
mainfrom
fix/grpo-reward-normalization-group-collapse

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Commits on Aug 20, 2026

Commits on Aug 21, 2026