Anthropic Mythos/Fable fallout becomes a live governance case study
Anthropic’s June 12 statement said the U.S. government ordered it to suspend access to Fable 5 and Mythos 5 for foreign nationals, citing national-security concerns around a possible jailbreak, while Anthropic argued the evidence involved a narrow capability also available in other models and warned that applying this standard broadly could halt frontier deployments.
AP later reported that Mythos identified vulnerabilities in classified U.S. government systems during a security test, and Reuters reported that Legion LegalTech sued the U.S. government over the access order after it disrupted use by Canadian developers.
Primary trail
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