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US forces Anthropic to block foreign access to Fable 5, Mythos 5

The US government issued an export control directive on June 12, 2026, forcing Anthropic to immediately suspend all foreign national access to its Fable 5 and Mythos 5 models globally. Anthropic complied, disabling both models hours later. The directive cited a potential jailbreak, but Anthropic argues the technique is not unique to its models.

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Jun 13, 1:01 AM