RL Training Boosts pass@1 on Easy Puzzles but May Reinforce Wrong Modes on Hard Ones
burny_tech · x · 2026-07-22
In a thread, evangelinejy99 analyzes that RL training amplifies correct moves SFT already preferred on easy puzzles, improving pass@1, but pass@16 gains are smaller or negative. On hard puzzles, RL surfaces correct moves from the tail but also reinforces wrong modes.
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