Multiple reports say the Trump administration has restricted access to Anthropic’s most advanced AI model, dubbed “Mythos,” by cutting off entry for key allied countries. The reports describe the move as part of tighter U.S. security controls affecting how advanced AI systems are shared and accessed. According to the accounts, America’s closest allies are prevented from using or obtaining access to Mythos, while the United States retains the primary ability to interact with the model. The coverage frames the development as a change in AI distribution that goes beyond commercial licensing and instead reflects government-imposed restrictions. Both outlets report that Australia is among the allies affected, with the West Australian describing it as being “locked out” of Anthropic’s top-tier models. While the articles differ slightly in framing, they agree on the core point: access to Anthropic’s leading AI capabilities is curtailed for allied partners amid heightened U.S. security measures. The reports do not provide further technical details about the specific mechanism of the restriction or its immediate duration.