Anthropic Claude AI Shutdown: US Govt. Export Control

Artificial intelligence lab Anthropic recently suspended access to its latest Claude models, Fable 5 and Mythos 5. This happened just three days after their release. The US government issued an "export control directive," prohibiting non-US nationals from using these models. Mythos is Anthropic's most powerful model, initially deemed too good at hacking for immediate public release. Fable, a similar model with added safeguards, was released to the public but quickly shut down. Anthropic and the Trump administration have been in conflict since early 2025 over AI regulation and other issues. The dispute intensified when Anthropic refused to let the Pentagon use its models for surveillance and autonomous weapons. Anthropic believes the government's directive came after it became aware of a "jailbreak." This method bypasses Fable's safeguards, allowing access to its powerful features for potentially harmful purposes. Anthropic states that Amazon engineers may have produced the research behind the government's directive. Understanding these developments is crucial as they highlight ongoing tensions between AI developers and government oversight.