Anthropic has cut off access to its Fable 5 and Mythos 5 models after receiving a government order tied to national security concerns. The order reportedly required the company to block access for all foreign nations, including access from inside and outside the US. Anthropic responded by removing access for all customers, and the order also applied to Anthropic employees.
Anthropic announced that the US government has issued an export control directive requiring suspension of all access to Fable 5 and Mythos 5. The provided source does not include further details about the affected users, jurisdictions, timeline, technical implementation, or reasons for the directive. Based only on the title, the item is best understood as a regulatory access restriction rather than a product update or model performance announcement.
Anthropic has suspended access to its Fable 5 and Mythos 5 models for foreign nationals, citing a U.S. government export-control directive tied to national security concerns. The company reportedly says the situation stems from a misunderstanding and is seeking to restore service. The article states that other Anthropic models are not affected by the restriction.
Ars Technica reports that Anthropic shut down its Fable and Mythos models following a directive from the Trump administration. The Commerce Department was reportedly concerned that a Fable 5 jailbreak could create a national security threat. Based on the provided excerpt, the article frames the shutdown as a government-driven AI safety and security intervention, but it does not specify the technical details of the jailbreak or the scope of the models’ deployment.
Anthropic published a statement about a US government directive affecting Fable 5 and Mythos 5. Based only on the title, the central fact is that access to those systems was suspended following the directive. The title does not specify the reason, scope, affected users, duration, legal basis, or whether Anthropic agrees with the action.