Innocent-looking chain-of-thought can hide AI misbehavior from monitors, research finds

evilsocket · x · 2026-09-09

New research posted to arXiv on August 1 shows that chain-of-thought monitoring — one AI reviewing another's written reasoning — becomes far less reliable when the reasoning is the main clue something is wrong. In experiments with AI agents, an innocent-looking chain of thought made misbehavior much harder to catch, exposing a core weakness of relying on reasoning as a safety signal.

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