
Anthropic took Claude Fable 5 and Mythos 5 offline after a US government directive barred foreign nationals from using them. Mythos 5 can both find and exploit software vulnerabilities. The Trump administration restricted the models, believing Fable 5's guardrails can be disabled, creating a national security risk.
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Summary by ByteBrief
US Ordered Anthropic to Pull Fable 5 Over Jailbreak