METR’s Red Team Broke OpenAI’s Agent Monitoring Three Ways. Each One Attacks a Different Assumption.

On October 22, 2026, METR published Red-Teaming OpenAI’s Internal Agent Monitoring Systems , detailing a three-week pilot red-teaming exercise conducted between July 21 and August 11, 2026. A METR employee and a Redwood Research employee stress-tested OpenAI’s internal misalignment monitoring system as it existed on and before July 21, 2026. The exercise was designed as a pilot for giving external researchers deep access to internal infrastructure, not as a mechanism for robust public transparency.

Source: Forkast