Anthropic Disables Claude Mythos 5 and Claude Fable 5 Worldwide After US Export Order

*Anthropic has cut off all customer access to two Claude models in response to a US government export control directive.*

Anthropic confirmed that it disabled Claude Mythos 5 and Claude Fable 5 for every customer after receiving the directive. The action took effect immediately and applies globally.

The company stated the move follows an export control directive issued by the US government. No further technical details or timeline for restoration were provided in the announcement.

What the directive covers

Export controls on AI models typically restrict distribution of certain capabilities outside the United States. In this case the controls led Anthropic to remove the two models from its service entirely rather than limit them by geography.

Customers who had been using either model lost access without prior individual notice beyond the public statement.

Why it matters

US export rules are now reaching into production AI services, forcing companies to withdraw finished models rather than adjust access tiers. Engineers and teams relying on those specific Claude versions must migrate workloads or switch providers with no indicated grace period. The precedent suggests future model releases will carry similar compliance risks from the start.

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Sources:

• 9to5Mac

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