Trump administration won't allow G7 member countries to regain access to Fable The Trump administration denied a request from UK Prime Minister Keir Starmer to exempt British nationals and companies from the embargo on Anthropic's Mythos and Fable models, with a senior White House official citing concerns over frontier model safety. Keir Starmer requested a carveout from the embargo on Anthropic's Mythos and Fable models for British nationals and companies - and was denied. A senior White House official, speaking on condition of anonymity, told the New York Post: 'We can’t have frontier models running amok'.