White House asks OpenAI and Anthropic not to give new models to British testers until they are checked in the US
Prepared by Sintelligent with the help of SI. Publication time restored from the build log. . Updated: .
The strongest models are becoming a strategic asset of the state: the first to see them now are not allies but one's own intelligence services.
The request came from the Office of the National Cyber Director and concerns the UK AI Security Institute (AISI), which previously received models among the first. Anthropic has already complied: Mythos 5.1 is "available only to a number of American organizations". The administration explained: "These are American companies, and this is our policy for every new frontier model." The British government responded that it continues to work closely with the US and both companies, and that risks "do not stop at borders". The AISI director acknowledged a gap in access, but clarified that the institute did receive GPT-6 Astra before its release.
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