White House reportedly asked OpenAI and Anthropic to hold new frontier models from UK testers

politico.com · 25 September 2026, 09:30

Rumor — unconfirmed reporting.

The White House reportedly asked OpenAI and Anthropic to pause sending newly developed frontier models to UK testers. The request was to hold them back until the U.S. government completed its review. As a result, UK testing of these new models would be delayed pending that review.

Why it matters

The issue says the White House “reportedly sought first review” by asking OpenAI and Anthropic to hold new frontier models from UK testers until the U.S. government reviewed them.