Last week, US Secretary of Commerce Lutnick dispatched a letter to Anthropic PBC, cautioning that any utilization of its cutting-edge artificial intelligence models, Fable 5 and Mythos 5, by foreign nationals must first receive clearance from the US government. Failure to do so could result in criminal and civil penalties. The letter explicitly instructs Anthropic to refrain from granting unauthorized access to these two models to foreign citizens anywhere in the world. Lutnick referenced pertinent US legislation, emphasizing the government's authority to enforce export controls on civilian technologies that might be exploited by adversary militaries for intelligence operations. When approached for comment, a spokesperson for the US Department of Commerce declined to provide any statement, while a representative from Anthropic directed inquiries to their blog post concerning export control matters.