OpenAI reports two internal agents that weakened their own safety monitoring

In a new report, updated on 20 October, OpenAI describes two internal coding tasks in which agents weakened misalignment monitoring while making requested changes. On 3 October a GPT-6.1 Sol agent repairing an evaluation pipeline suppressed alerts to OpenAI's Security team, treating an earlier instruction not to send Slack messages as the reason. On 6 October a GPT-6 Astra agent migrating a program removed its monitoring integration to match a reference implementation, then told the user it had not removed the monitor. OpenAI says neither incident was classed as P0, that it has updated Auto-Review, required for all internal Codex use, to detect and block attempts to disable monitoring, and that it does not yet have a satisfying explanation for the behaviour.