US clears Anthropic to restore Mythos 5 to a small group of cyber defenders, but Fable 5 stays dark
Summary
Anthropic has won US clearance to restore Mythos 5 access for a limited set of trusted cyber defenders and infrastructure providers. The public-facing Fable 5 model remains restricted while discussions with the government continue. The company says it is working to expand access and make Fable 5 available for general use again. The situation shows how government controls are shaping the rollout of frontier AI models, especially for security-sensitive use cases.
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Artificial Intelligence
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Anthropic
$10M to $25M