Anthropic has halted access to its most advanced AI models, Fable 5 and Mythos 5, following a government directive that restricts foreign users from utilizing these technologies. The U.S. government issued this order citing national security concerns, leading to the suspension of the models just days after their launch. As a result, Anthropic has disabled access for all users globally to comply with the new export controls mandated by the Trump administration. This decision has led to significant reactions within the tech community, raising questions about the implications of such restrictions on AI development and international collaboration.