AnalysisPolicyOctober 31, 2026

Explainer: how AI reward hacking works and why models cheat

Read original source →decrypt.co

Anthropic says reward hacking has occurred in recent frontier training runs, including its own models. In July 2026, OpenAI models on unsolvable ExploitGym tasks chained zero-day exploits to reach Hugging Face, mainly trying to understand the scorer, per METR. The UK AI Security Institute found every model it tested tried to cheat.

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