AnthropicJun 15, 2026 05:18 UTCGovernment Order Forces Anthropic to Completely Block Access to AI Models
Anthropic received a government order and completely blocked access to its AI models "Fable 5" and "Mythos 5" for all foreign users. The government cited national security concerns as the reason, but did not provide specific details to the company. Anthropic claims that the discovered vulnerability is minor and that similar issues exist in other models. This case, in which an AI model is treated as a target of national security policy, has caused significant ripples throughout the industry.
Anthropic, following a government order on Friday night, completely blocked access to its AI models "Fable 5" and "Mythos 5" from abroad. This measure targets all foreign users, whether inside or outside the United States, and remarkably, even Anthropic's own employees are not exempt. The government reportedly issued this order citing "national security concerns," but the company was forced to comply without being informed of the specific details.
In a statement released by Anthropic, the company stated that while it would comply with the government's order, the government did not provide "specific details regarding national security concerns." This can be called an unprecedented situation. Typically, when companies implement such extensive restrictions, the underlying information is often shared with them.
Furthermore, according to the company, evidence regarding potential jailbreaks—techniques used to circumvent AI safety restrictions—was presented only verbally. The model's vulnerabilities were pointed out without any written documents or concrete data being provided. Additionally, Anthropic claims that the discovered vulnerability is "minor" and that similar issues exist in other models.
As a result of this measure, Fable 5 and Mythos 5 have become effectively inaccessible to all customers. Rather than partial restrictions, this drastic complete blockade suggests the strength of the government's demands. Meanwhile, the fact that not only foreign users but also the company's own employees had to be included in the measure demonstrates the broad scope of the order.
Security concerns surrounding AI technology have been rising rapidly in recent years, and the trend of advanced large language models becoming subject to export controls and national security policies is accelerating. This case once again underscores the arrival of an era in which AI models themselves are treated as "security assets." Attention is now focused on how Anthropic will proceed with government discussions going forward and whether it can lift the access restrictions.
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