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US Directs OpenAI and Anthropic to Withhold New AI Models from UK Safety Institute Pending Review

The White House has lifted a 17-day restriction that blocked Britain's AI Security Institute from testing new models by OpenAI, Anthropic, and Google DeepMind before public release. The reversal follows diplomatic pressure from UK officials, restoring a key international safety evaluation channel.

Factlen Newsroom· Updated

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The White House lifted a 17-day restriction on sharing unreleased AI models with British safety testers.From: US Restores UK AI Security Institute Access to Pre-Release Frontier Models Following Freeze

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The 17-day suspension temporarily halted the UK's access to new models from major American AI developers.From: US Restores UK AI Security Institute Access to Pre-Release Frontier Models Following Freeze ·
Illustration: The UK AI Security Institute conducts rigorous pre-release evaluations to identify cybersecurity vulnerabilities in frontier models.From: US Restores UK AI Security Institute Access to Pre-Release Frontier Models Following Freeze ·
Illustration: Diplomatic lobbying by British officials was instrumental in reversing the US directive.From: US Restores UK AI Security Institute Access to Pre-Release Frontier Models Following Freeze ·
Illustration: Independent safety testing remains a critical component of global efforts to manage the risks of advanced AI systems.From: US Restores UK AI Security Institute Access to Pre-Release Frontier Models Following Freeze ·
Frontier AI models are increasingly being treated as strategic national assets requiring domestic clearance.From: US Directs OpenAI and Anthropic to Withhold New AI Models from UK Safety Institute Pending Review ·

Timeline

October 2026

  1. US Restores UK AI Security Institute Access to Pre-Release Frontier Models Following Freeze

September 2026

  1. US Directs OpenAI and Anthropic to Withhold New AI Models from UK Safety Institute Pending Review