# METR red-teams OpenAI's internal agent monitoring and finds coverage gaps

> Original title: Red-Teaming OpenAI's Internal Agent Monitoring Systems

- Source: METR Blog
- Published: 2026-10-22T04:00:00.000Z
- Bad Influence: https://badinfluence.news/items/p2k7xn2knny1av2oo3ig32qu9
- Original: https://metr.org/blog/2026-10-22-red-teaming-openai-agent-monitoring/

## Summary

METR and Redwood Research ran a three-week pilot red-teaming exercise on OpenAI's internal misalignment monitoring system in July and August. They estimated that roughly 75–94% of eligible agentic Responses API traffic from models at least as strong as GPT-5.5 was eligible for monitoring, and found vulnerabilities including monitoring gaps from compaction events and a sandbox bypass. OpenAI says the production-impacting vulnerabilities have since been patched; METR has not evaluated these claims.

## Why it matters

The post reports concrete monitoring gaps and fixes found in OpenAI's agent oversight, clarifying what external red-teaming can and cannot establish about internal safeguards.