US forces Anthropic to disable models

What's happened

The US Commerce Department has ordered Anthropic to suspend access to its Fable 5 and Mythos 5 models for all foreign nationals. Anthropic has disabled both models for all customers to comply, says the company; it disputes the governments evidence of a "narrow" jailbreak and is working to restore access while other Anthropic models remain available.

What's behind the headline?

What happened and why it matters

The Commerce Department has invoked an export-control directive that has forced Anthropic to disable Fable 5 and Mythos 5 to any foreign national, including foreign employees. Anthropic has shut both models to comply and says the government provided only verbal evidence of a "potential narrow, non-universal jailbreak." The move removes access to two of the industrys most capable models and will reshape who can use frontier AI for cybersecurity and research.

Power and access are now policy tools

• AI capability is becoming an asset governments control directly. Limiting access to models is as consequential as curbing chip exports was in previous years. Governments will now decide which organisations get defensive cyber tools and which do not.
• Anthropic and other frontier labs are acting as gatekeepers. Their trusted-access programs will determine which defenders and firms get the most powerful capabilities. That will create a structural advantage for those inside the trusted circle and a capability gap for others.

Business and political fallout

• Anthropic will face immediate commercial disruption: customers who relied on Fable 5 will lose service and enterprise deals could stall. The company is also preparing for an IPO, and regulatory interventions of this scale will complicate investor due diligence.
• Allied governments will push for alternatives. European leaders have already described the U.S. action as a wake-up call and will accelerate plans for tech diversification and national AI access programs.

Forecast — what will happen next

• The US will expand export-control use as a regulatory tool for frontier AI. Companies will adjust product roadmaps to anticipate government vetting before big releases. Trusted-access programs will grow and become formalised.
• Allies will accelerate efforts to secure independent access to advanced models and to build their own trusted-access arrangements. That will increase fragmentation in the global AI ecosystem and slow cooperative responses to cross-border risks.

Bottom line

This action will force the industry to treat access control as a core safety and commercial strategy. The immediate effect is disruption to customers and partners; the longer effect is a more politicised, tiered AI landscape where governments and a small set of vendors determine who can use the most powerful tools.

How we got here

Anthropic has developed Mythos-class models with strong cybersecurity capabilities and released Fable 5 publicly while keeping Mythos 5 limited to vetted partners. The company has clashed with the US government this year over military use of its AI and a supply-chain blacklist; Washington has been testing frontier models and expanding export controls on advanced tech.

Our analysis

The reporting presents two consistent facts: the Commerce Department issued an export-control directive and Anthropic disabled access to Fable 5 and Mythos 5 to comply. Anthropic has framed the action as based on a "narrow potential jailbreak" and has argued the government provided only verbal evidence (Anthropic statement, reported by CNBC and TechCrunch). CNBC reported the company received the order at 5:21 p.m. ET and said the models were pulled to ensure compliance. TechCrunch and Bloomberg add that Anthropic believes the directive followed claims a user could bypass Fable 5's guardrails; TechCrunch cited independent security researcher Katie Moussouris, who said the described bypass should not trigger export controls. Al Jazeera and France 24 emphasise the diplomatic friction the move is causing: French President Emmanuel Macron called the limits "a bad thing" at a G7 meeting, and European Commission spokespeople described the issue as a shared security challenge. The New York Times and AP placed the measure in the context of Anthropics earlier restricted rollout of Mythos under Project Glasswing and noted the company had been testing the model with partners. Tech outlets including The Guardian and TechCrunch highlighted Anthropics safety claims for Fable 5, explaining that many risky queries were routed to the less-capable Opus 4.8 model. Differing tones emerge: business and tech outlets (CNBC, TechCrunch, Bloomberg) stress regulatory and commercial disruption; international outlets (Al Jazeera, France 24) stress geopolitical fallout; security commentators cited in TechCrunch and Bloomberg argue the governments decision is heavy-handed and could remove defensive capabilities from cyber defenders. Read CNBC and TechCrunch for operational details and Anthropics timeline; read Al Jazeera and France 24 for the diplomatic reaction and broader policy implications.

Go deeper

• What legal path can Anthropic use to challenge the Commerce Departments directive?
• Which countries or organisations will lose critical cybersecurity capabilities because of the shutdown?
• How will other AI labs change release and vetting practices in response to this directive?

More on these topics

• Anthropic - Artificial intelligence company

  Anthropic PBC is a U.S.-based artificial intelligence startup public-benefit company, founded in 2021. It researches and develops AI to "study their safety properties at the technological frontier" and use this research to deploy safe, reliable models for

• OpenAI - Artificial intelligence company

  OpenAI is an artificial intelligence research laboratory consisting of the for-profit corporation OpenAI LP and its parent company, the non-profit OpenAI Inc.

• United States Department of War - Government department

  The United States Department of Defense is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national security and the United States Armed Fo

• White House - Official residence and office of the President of the United States

  The White House is the official residence and workplace of the president of the United States. Located at 1600 Pennsylvania Avenue NW in Washington, D.C., it has served as the residence of every U.S. president since John Adams in 1800 when the national...

• TechCrunch

  TechCrunch is an American online publisher focusing on the tech industry. The company specifically reports on the business related to tech, technology news, analysis of emerging trends in tech, and profiling of new tech businesses and products.

• United States Department of Commerce - Government department

  In the United States, the Department of Commerce is an executive department of the federal government concerned with promoting economic growth.

• United States - Country in North America

  The United States of America, commonly known as the United States or America, is a country mostly located in central North America, between Canada and Mexico.

• SpaceX - Aerospace company

  Space Exploration Technologies Corp., trading as SpaceX, is an American aerospace manufacturer and space transportation services company headquartered in Hawthorne, California.

• Rakuten - Internet company

  Rakuten, Inc. is a Japanese electronic commerce and online retailing company based in Tokyo. It was founded in 1997 by Japanese businessman Hiroshi Mikitani. Its B2B2C E-Commerce platform Rakuten Ichiba is the largest e-commerce site in Japan.

• Elon Musk - CEO of SpaceX

  Elon Reeve Musk FRS is an engineer, industrial designer, technology entrepreneur and philanthropist. He is the founder, CEO, CTO and chief designer of SpaceX; early investor, CEO and product architect of Tesla, Inc.; founder of The Boring Company; co-foun

• Axios - Wikimedia disambiguation page

  Axios commonly refers to: Axios (river), a river that runs through Greece and North Macedonia Axios (website), an American news and information website Axios may also refer to:

• CNBC - Television channel

  CNBC is an American pay television business news channel that is owned by NBCUniversal Worldwide News Group, a division of NBCUniversal, with both being ultimately owned by Comcast.

• Dario Amodei - CEO and co-founder of Anthropic, Ph.D. Princeton University 2011

  Dario Gabriele Amodei (born 1983) is an American artificial intelligence (AI) researcher and entrepreneur. In 2021, he and his sister Daniela Amodei co-founded Anthropic, the company behind the large language model series Claude. Prior to that, he was the vice president of research at OpenAI. In his capacity as Anthropic's CEO, Amodei often writes on the benefits and risks of advanced AI systems. He is a proponent of an "entente" strategy in which a coalition of democratic nations use advanced AI systems in military applications to achieve a decisive advantage over adversaries while sharing the benefits with cooperating nations.