Friday 25 September 2026 · story 8 · Policy

White House tells OpenAI, Anthropic to hold models from UK testers

The Decoder · 25 Sep 2026 · Manuel Uth

OpenAI and Anthropic have been asked by the White House to keep new models from the UK's AI Safety Institute until US agencies have reviewed them, The Decoder reports, citing Politico. Anthropic has made Claude Mythos 5.1 available only to US organizations.

Why it matters. Pre-release safety testing access can now depend on geopolitics, so do not assume every regulator sees a model at the same time.

Read the original at the-decoder.com

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