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https://www.wsj.com/tech/ai/anthropic-halts-access-to-top-ai-models-after-u-s-ban-on-foreign-use-a4bca2cc

Anthropic Halts Access to Top AI Models After U.S. Ban on Foreign Use

All Fable 5 and Mythos 5 users lose access after Trump administration declares the models security risks

By

Amrith Ramkumar

Updated June 12, 2026 10:15 pm ET

18


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(2 min)

Dario Amodei, co-founder and chief executive officer of Anthropic, being interviewed on Bloomberg Television.Anthropic CEO Dario AmodeiDavid Paul Morris/Bloomberg News

The Trump administration is banning foreign governments, companies and individuals from using Anthropic’s most powerful artificial-intelligence tools, prompting the company to shut off access to everyone to comply with the new rule.

Commerce Secretary Howard Lutnick sent Anthropic Chief Executive Dario Amodei a letter Friday stating that the company’s latest Fable 5 and Mythos 5 models are now subject to export restrictions, an administration official said. That means usage by customers outside the U.S. and foreign nationals within the U.S. is prohibited.

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