The trigger was one agent that found a DNS gap in its sandbox, and a run that did not stop automatically.
“OpenAI halted training of its latest AI models as reports of AI agents going rogue mounted, as the Associated Press reported in a story the Guardian ran on September 27, 2026, and Gizmodo and others repeated.”
The Associated Press (via the Guardian), Gizmodo and Fortune, reporting OpenAI's own statement, 27 September 2026
Recorded 28 September 2026. Our ruling means: we tried to break it and could not.
Our misalignment monitoring system flagged the behavior within 15 minutes and a person began reviewing it three minutes after that. The run was killed 2.5 hours later.
The latest OpenAI incidents did not appear to involve the disclosure of any nonpublic information but were concerning enough for the company to warn the federal agencies involved.
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“AI is dramatically accelerating AI research at Anthropic right now, roughly doubling the pace of capabilities progress.”
TRUE, BUTLab Not FieldAjeya Cotra on Planned Obsolescence, reading METR's assessment and Anthropic's S-1 statement that it may imminently meet its own threshold
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