Anthropic disabled Fable 5 and Mythos 5 after US Commerce Dept export control directive

U.S. government officials ordered Anthropic to disable access to Claude Fable 5 and Claude Mythos 5. According to Axios, Commerce Secretary Howard Lutnick sent a letter to the company's CEO Dario Amodei directing the suspension of all access by any foreign national, anywhere in the world. The company said both models are now offline for every customer on the platform worldwide. Anthropic attributed the action to an export control directive from the U.S. government citing national security authorities. The order requires the company to abruptly disable the models for all customers to ensure compliance. All other Claude models remain available. The directive followed a reported jailbreak of Fable 5's safety guardrails. White House AI adviser David Sacks wrote on X that a trusted partner reported the jailbreak to the administration. Sacks said the administration asked Anthropic to fix the jailbreak or de-deploy the model, but Dario refused. Anthropic disputes the severity of the jailbreak and the characterization of its response. The company said the level of capability demonstrated is available from other publicly deployed models, including OpenAI's GPT-5.5. It added that it disagrees a narrow potential jailbreak should be cause for recalling a commercial model. Reporting by Semafor and the Wall Street Journal points to Amazon as the trusted partner. Amazon researchers reportedly used Anthropic's Claude Fable 5 to obtain information that could be used in cyberattacks. Amazon is one of Anthropic's largest investors and provides much of its cloud infrastructure.