Anthropic launched Claude Fable 5 on a Tuesday, but by Friday the U.S. government had pulled the plug. It's the first time America has forcibly removed an AI model from circulation. The shutdown followed a jailbreak that exploited the model's Mythos backstory, raising alarms in Washington. For the full story, see the original article at Xplaination.
U.S. Government Shuts Down Anthropic's Claude Fable 5 After Just Three Days
AI
June 13, 2026 · 5:54 PM