The US government has ordered Anthropic to suspend access to its newest and most powerful AI models, Mythos 5 and Fable 5, just three days after their release. The restriction applies to all non-US citizens. Officials cited national security risks as the reason for the action, expressing concern that the highly effective AI could be used to identify and exploit cybersecurity vulnerabilities. Anthropic, the developer of the Claude AI models, complied with the order. The move highlights growing US scrutiny of advanced artificial intelligence and its potential misuse. This decision underscores the delicate balance between fostering AI innovation and safeguarding national interests. The suspension impacts the global availability of these cutting-edge AI capabilities.