UK says it will again test OpenAI and Anthropic models before release

What happened

Britain’s AI Security Institute will keep testing the most powerful AI models before they are released, the UK government said on Monday. October 12, 2026 - 4:19 pm Britain’s AI Security Institute will keep testing the most powerful AI models before they are released, the UK government said on Monday.

AI minister Kanishka Narayan said the UK had worked closely with the US to keep that access, Bloomberg reported. It reverses a US move that put White House checks first.

Anthropic UK says it will again test OpenAI and Anthropic models before release Minister Kanishka Narayan says UK testers keep early access, weeks after the White House asked labs to hold back. AI minister Kanishka Narayan said the UK had worked closely with the US to keep that access, Bloomberg reported . Anthropic is an artificial intelligence company based in San Francisco. OpenAI is an artificial intelligence company based in San Francisco.

What changed Last month, the White House asked OpenAI and Anthropic to hold new models back from UK testers until US officials had checked them. Anthropic did not share its Mythos model with the institute, Bloomberg reported.

The Telegraph first reported the U-turn and said Narayan had lobbied for it. Narayan credited the recent King Charles summit for bringing ministers and tech bosses together.