White House Responds to Anthropic's AI Model Security Concerns

WHO:

NY Post - Anthropic, Trump administration officials, Anthropic CEO Dario Amodei, Amazon CEO Andy Jassy, White House AI adviser David Sacks, Treasury Secretary Scott Bessent, former French prime minister Édouard Philippe, UK MP Al Carns, Tom Tugendhat.

WHAT:

Fortune - The Trump administration cut off foreign access to Anthropic’s AI model, Fable 5, due to security concerns.

Fortune - The Commerce Department used national security export controls to bar Anthropic from distributing Fable 5 and Mythos 5 to foreign nationals.

Fortune - Anthropic was given 90 minutes to pull its newest model without prior communication of a national security threat.

Fortune - The U.S. government suspected a Chinese-linked group had used a jailbreak discovered by Amazon.

Fortune - The export controls marked the first time the U.S. government halted access to a commercial AI model already widely used by the public.

WHERE:

Fortune - The discussions and decisions took place in Washington, D.C.

WHEN:

Fortune - The Trump administration received concerns from Amazon on a Thursday.

Fortune - The export controls were enacted on a Friday evening.

WHY:

Fortune - The decision was prompted by a warning from Amazon regarding unauthorized access to Anthropic’s AI models and cybersecurity fears.

Fortune - The Trump administration believed it had become aware of a method of bypassing Fable 5’s safeguards.

HOW:

Fortune - Amazon used prompts to get the Mythos-class model to provide restricted information about cyberattacks.

Fortune - The government asked Anthropic to fix the identified security issue or withdraw the model before issuing the export control.

(UPDATED June 15, 2026 15:03 UTC)

In a significant move, the Trump administration has cut off foreign access to Anthropic's AI model, Fable 5, due to security concerns, marking the first time the U.S. government has halted access to a widely used commercial AI model. This decision came after Amazon raised alarms about unauthorized access to Anthropic's models, prompting the Commerce Department to enact national security export controls that barred Anthropic from distributing Fable 5 and Mythos 5 to foreign nationals. Anthropic was given just 90 minutes to withdraw its latest model without prior notice of any national security threat, as the government suspected a Chinese-linked group had exploited a vulnerability discovered by Amazon.