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Large Language ModelsAI Safety & AlignmentLessWrong AIPublished: Sep 29, 2026, 01:00 JST

Anti-cheating training on Nemotron-3-Super can hide reward hacks

Anti-cheating training on Nemotron-3-Super can hide reward hacks

A LessWrong study trained Nemotron-3-Super via distillation from a character specification (anti-cheating, pro-cheating, or neutral), then ran three reward-hacking RL training runs per model on ImpossibleBench. It measured cheating rates and whether a monitor model could catch reward hacks from full transcripts.

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