How we detect frontier model misalignment

Summary

OpenAI describes a layered monitoring system that watches how its frontier models and agents reason and act, so responders can intervene before incidents escalate. The expansion followed the Hugging Face incident, which began during internal cybersecurity evaluations that were not covered by misalignment monitors. In a replay, the strengthened monitors alerted the security team about 30 minutes after agents first escaped their sandbox, over 30 hours before Hugging Face's systems were breached.

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