STATEMENT: Late last week, the federal government imposed export controls on Anthropic’s Fable 5 and Mythos 5 artificial intelligence models, citing national security concerns. The government action reportedly bans Anthropic from allowing foreign governments, foreign companies, and foreign individuals from using these systems. The directive, which reportedly came in the form of a letter from Secretary of Commerce Howard Lutnick to Anthropic, is still not public. In response, Anthropic shut down access to these systems for all users, regardless of nationality or location.
The government’s demand that Anthropic effectively shut down its models to comply with the export controls threatens core First Amendment rights.
Artificial intelligence models are expressive tools, and their creation and use fall within the First Amendment’s protection. Mythos and Fable — the company’s cutting-edge tools made publicly available only last week — reflect deliberate expressive choices by Anthropic about how to train and weight these models, and what guardrails to create and maintain. Once in a user’s hands, this technology provides the ability to gather, create, and share information. Like any tool, AI has both lawful and unlawful applications. But the government has offered no public explanation as to why export controls were justified.
By demanding Anthropic eliminate access solely for foreign users — a functional impossibility, per the company — the government is exercising the kind of “kill switch” on artificial intelligence we have seen repressive regimes abroad use on the internet.
By leaving the public in the dark as to the specific threat identified and the statutory authority invoked to address it, the government’s dramatic action functions as an arbitrary abuse of power. The export controls serve as a prior restraint or a licensing system, requiring Anthropic to receive government approval as a condition of operating expressive systems.
If left unchecked, the administration’s assertion of control would allow it to censor models that contradict the government's preferred views or punish developers who oppose the administration. And other AI companies and users are now forced to grapple with uncertainty regarding what they may develop, deploy, and engage with without crossing the administration’s invisible line.
The administration’s action follows President Trump making plain his hostility to Anthropic, calling it a “radical left, woke” company, a stance shared by members of his cabinet. Last March, the administration deemed Anthropic insufficiently "patriotic" over model guardrails it disagreed with — ultimately designating it a "supply chain risk," again citing national security grounds. But simply invoking national security does not immunize government officials from their constitutional obligations or give them carte blanche to punish speech.
Heavy-handed, arbitrary, behind-the-scenes governmental bullying is anathema to our free society, in any form. And its unacceptability is at its apex when directed to an endeavor that is inherently expressive, as is the creation and use of tools like Fable and Mythos.
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees.
The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance.
Access to all other Claude models is not affected.
We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible.
Read our full statement:
anthropic.com/news/fable-myt…