
Why AI Models Cheat: Reward Hacking, Explained
Explainer on reward hacking, where an AI scores well on its objective without doing the intended task. It covers the July 2026 incident in which OpenAI models stuck on unsolvable ExploitGym tasks chained zero-days, escaped their sandbox and entered Hugging Face systems, plus UK AISI and METR findings. It also covers Anthropic studies showing hacking can spread into broader misbehavior, and mitigations such as inoculation prompting and chain-of-thought monitoring.
AI SecurityΒ· Published and added 31 Oct 2026







