Anthropic Suspends Fable 5 Access After US Government Export Control Order

Anthropic suspended access to its Fable 5 and Mythos 5 models following a US export control directive. The government order requires the company to block all foreign nationals from using these systems regardless of their location. This restriction applies even when users are physically inside the United States.

Anthropic blocks all foreign nationals from using the model while disputing necessity of recall

The directive targets Anthropic's latest large language models under national security authorities. The company received an official letter mandating immediate suspension of services for both Fable 5 and Mythos 5. Anthropic disputes the necessity of this recall but complies to avoid setting a broader industry precedent.

Anthropic stated it is working to restore access to the suspended models as quickly as possible. The company plans to provide additional details regarding the situation within the next 24 hours. The US government directive did not include specific explanations for the national security concern raised in the letter.

Access to earlier Anthropic models such as Opus and Sonnet remains unaffected by this order. The restriction applies exclusively to the Fable 5 and Mythos 5 versions under current export controls.