US Government Orders Anthropic to Pull Claude Fable, Mythos AI Models – Decrypt

Jun 13, 2026 - 20:45
US Government Orders Anthropic to Pull Claude Fable, Mythos AI Models – Decrypt
In brief The U.S. government ordered Anthropic to suspend access to its two most advanced AI models, Fable 5 and Mythos 5, citing a national security concern over a potential jailbreak vulnerability. Anthropic complied but disputed the finding, arguing the vulnerability is simple and already replicable using other publicly available models like GPT-5.5. The company...

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