US Orders Anthropic to Block Foreign Access to Mythos

Posted on 06/15/2026
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The US government has ordered Anthropic PBC to disable access to its most advanced AI models, such as Mythos and Fable 5, for all foreign nationals. The order comes after the US government discovered it’s possible to “jailbreak,” or bypass the guardrails, of the Fable 5. Bloomberg's Neil Campling reports.

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