Oct 11 2026

White House restores UK AISI pre-release access to frontier models after a 17-day freeze

POLICYSAFETY

Original reporting

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The Office of the National Cyber Director had asked the labs to withhold pre-release models from UK testers on September 24th; Anthropic shipped Claude Mythos 5.1 without pre-release testing during the freeze.

Named in this event

UK AI Security InstituteOpenAIAnthropicGoogle

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