The US government’s ban on Anthropic and OpenAI frontier models has triggered a fresh wave of calls in the UK to reduce reliance on American technology — a push one paper has described as a ‘powerful reminder’ that Britain cannot depend on even its allies for access to vital tools. The restrictions, widely criticised by the cybersecurity community, forced Anthropic to indefinitely suspend access to its latest models while it tried to decipher the government’s unspecified national security concerns. Details of an alleged jailbreaking flaw were never disclosed, and the US Department of Commerce refused to comment publicly on the ban.
“The US’s move to restrict Anthropic’s latest AI models should be a powerful reminder that the UK may not be able to count on even its allies for access to vital technology,” the paper stated, noting that the Trump administration had also limited access to OpenAI’s latest models to a small number of hand-picked companies.
“US restrictions on AI models intensify UK tech sovereignty push, warns paper”
The growing importance of artificial intelligence has raised the stakes in a sovereignty debate that has been simmering for years. While the UK and other nations have long called for reduced dependence on US tech, the restrictions on frontier models have intensified the push, with significant cyber implications.
The question now is whether the UK can accelerate its own AI capabilities fast enough to wean itself off American technology — or whether 'tech-xit' remains a distant ambition in a world where the US controls the cutting edge.