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 Anthropic attributed the action to an export control directive from the U.S. government citing national security 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.