The US National Security Agency has reportedly lost access to Anthropic's Mythos 5 AI model following export restrictions imposed by the Trump administration. The AI had been used to identify software vulnerabilities. The development comes amid a legal dispute over the company's safeguards on military applications of artificial intelligence.

Access to Fable 5 and Mythos 5 barred for foreign nationals immediately following security evaluation

A U.S. official says one of Anthropic’s artificial intelligence models identified vulnerabilities in highly sensitive and secure U.S. government computer systems during a testing…

The access issue comes as the Five Eyes alliance is warning that frontier AI could soon accelerate both cyberattacks and cyber defense.

The Five Eyes alliance is warning that frontier AI could accelerate cyberattacks and cyber defense.

Anthropic teamed up with U.S. intelligence agencies to conduct tests using the Mythos model, which found vulnerabilities in classified Government systems

A U.S. official says one of Anthropic’s artificial intelligence models identified vulnerabilities in highly sensitive and secure U.S. government computer systems during a testing…

That's not the whole story, though.

Anthropic's Mythos AI model identified critical vulnerabilities in classified US government computer systems during a testing exercise, according to a statement from a US official.

The US National Security Agency has reportedly lost access to Anthropic's Mythos 5 AI model following export restrictions imposed by the Trump administration. The AI had been used…

Anthropic disabled access to its Fable 5 and Mythos 5 models to comply with a government export control directive citing "national security authorities."

The US government has allowed Anthropic to release its powerful Mythos AI model to select companies and organizations, revising license requirements after ordering an export block…

Anthropic announced it received authorization from the US govt to allow a small group of American cybersecurity firms to access its powerful AI model Mythos 5.

Anthropic's Mythos 5 AI model gains US approval for broader use after addressing national security concerns, easing previous restrictions.

Anthropic said it had received authorization from the US government to allow a small group of American cybersecurity firms to access its powerful AI model Mythos 5.

U.S. grants limited access to Anthropic's Mythos AI model for cybersecurity firms after previous national security concerns.