The White House has reversed a September decision that barred the UK AI Security Institute from accessing frontier models built by Anthropic, Google DeepMind, and OpenAI, according to The Daily Telegraph1,2. AISI, which tests AI systems for safety risks before release, will once again receive early access to those models.
The Trump administration had ordered the three companies to stop sharing models with AISI last month, prompting Anthropic to restrict access to Claude Mythos 5.1. The block was lifted after diplomatic pressure from AI Minister Kanishka Narayan, who plans to announce new AI safety measures in an upcoming speech, including stricter reporting requirements for AI-related security incidents involving critical infrastructure.
Prime Minister Andy Burnham had previously pushed for international AI regulation at the UN General Assembly, where Trump warned that "globalist" organizations should stay out of American AI development. The heads of MI6, MI5, and GCHQ had also warned ministers that AI was empowering hostile actors and terrorists.