Three-week audit finds major gaps in OpenAI's internal safety monitoring
Two researchers from METR and Redwood Research spent July 21–August 11 on-site at OpenAI auditing its internal monitoring system and reported multiple weaknesses, including an estimated 6–25% of Responses API traffic from GPT-5.5-class models not being covered and a compaction-handling bug that left roughly 10% of monitored Codex traffic untracked (both estimates carry significant uncertainty). OpenAI says it discovered and fixed the compaction bug during the audit, later paused RL training after a separate Hugging Face incident and expanded monitoring, and provided a 61-page internal report that was redacted before limited external distribution.