June 13, 2026

U.S. Government Suspends Access to Anthropic’s A.I. Models Over Security Concerns

The federal government has halted the operations of two artificial intelligence systems developed by the San Francisco-based company, Anthropic. This decision arises from national security concerns, as declared by the company on Friday night.

Anthropic’s executives announced in a social media statement that they are required to immediately disable the Fable 5 and Mythos 5 A.I. systems for all global customers. The directive impacts foreign nationals working with the company, aligning with the compliance requirements set by the government.

The company had initially introduced the Claude Mythos model in April. However, they refrained from making it publicly available, highlighting its potential misuse by cybercriminals to infiltrate computer networks. The model raised alarms among experts in Washington and Silicon Valley, as it could pose a severe threat to cybersecurity.

Aiming to mitigate potential risks, Anthropic provided the Claude A.I. system to approximately 40 organizations responsible for critical infrastructure. These entities were tasked with utilizing the model to address security weaknesses before they could be exploited by malicious actors.

The U.S. Department of Commerce issued the order to restrict access to these A.I. models, as per a source familiar with the matter who requested anonymity. The duration of these restrictions remains uncertain.

TAGS: