White House Orders Anthropic To Restrict Exports Of Fable And Mythos Models

The White House ordered Anthropic to restrict the export of its powerful AI models Fable and Mythos to anyone outside the United States, and to foreign nationals within the country, citing unspecified national security concerns.

“Cyber export controls June 19, 2026 | 22:01 Cadena 3 staff Last Friday, the White House, citing unspecified national security concerns, ordered Anthropic to restrict the export of its powerful AI models Fable and Mythos to anyone outside the United States, as well as to foreign nationals within the country”

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TechCrunch said Anthropic “hastily pulled the plug on both models,” which have been unavailable to anyone for a week after the Commerce Department placed export controls on Mythos and Fable last week.

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The Washington Post reported that lawmakers asked why the administration imposed sweeping restrictions on Anthropic’s latest models and whether rival tech companies should expect similar treatment.

The dispute centers on Anthropic’s frontier AI access rules, with the Washington Post noting Mythos was shown to be adept at finding security holes in computer code and Anthropic announced in April it would provide access to only a small group of partners.

A bipartisan group of House lawmakers demanded answers from the Trump administration in a letter sent Thursday about why it imposed sweeping restrictions on Anthropic’s latest artificial intelligence models.

The Washington Post quoted the lawmakers writing, “While this action concerned a single AI model, it appears to represent a significant new application of export control authorities,” and it said the Commerce Department provided no official explanation for the move.

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The Washington Post also reported that the letter was signed by California Reps. Sam Liccardo (D), Ted Lieu (D) and Jay Obernolte (R), as well as Rep. Scott Franklin (R-Florida), and that they asked Commerce Secretary Howard Lutnick for information.

In parallel, Japan Wire by Kyodo News reported that Anthropic launched a Seoul office after the company decided to remove access to its most advanced AI models—Fable 5 and Mythos 5—after the Donald Trump administration ordered the company to suspend foreign nationals' access to them, and Anthropic’s Chris Ciauri said, “Korea is one of our fastest growing markets in the world ... because of the technical and developer base that you have.”

WIRED linked the White House’s export controls to a spat over Anthropic granting South Korean telecom giant SK Telecom access to its Claude Mythos model, with US officials concerned about what they alleged were SK Telecom’s ties to China.

“The White House moved to limit overseas access to Anthropic’s most powerful models”

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WIRED said the concerns compounded after Amazon flagged vulnerabilities it identified in Fable 5, and it described Fable 5 as a highly safeguarded version of Mythos released to the public on June 9.

TechCrunch framed the trigger as two events, saying Anthropic gave a South Korean telecom access to Mythos through its limited partner program and that Amazon CEO Andy Jassy alerted the administration after Amazon’s researchers found a way around Fable 5’s safeguards.

Across the broader history of cyber controls, TechCrunch pointed to the U.S. Customs Service opening a criminal investigation against Phil Zimmermann for allegedly violating arms export controls over PGP, and it said Zimmermann later won a key battle when the investigation was closed, paving the way for end-to-end encryption algorithms used by billions of Signal and WhatsApp users.