Anthropic says Mythos and Fable 5 access could return in coming days after White House block

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Anthropic confident of re-enabling Mythos, Fable 5 access 'in coming days': Executive

Anthropic said its blocked frontier AI models could be available again within days as it expands in Korea despite U.S. security restrictions.

PARK EUN-JEE

PARK EUN-JEE

Published<br>June 18, 2026 - 12:00 a.m.

Modified<br>June 18, 2026 - 3:30 p.m.

Anthropic Korea Representative Director Choi Ki-young, left, and Anthropic Managing Director of International Chris Ciauri take questions from reporters during a press conference at Conrad Seoul in western Seoul on July 17.<br>ANTHROPIC KOREA

Anthropic is confident in re-enabling access to its frontier AI models soon, according to an executive at the U.S. AI giant, following the White House’s directive to block Mythos and Fable 5 for foreign nationals.<br>“We are very confident that in the coming days, the models will become available again,” said Anthropic's Managing Director of International Chris Ciauri during a press conference in Seoul on Wednesday.<br>Following the directive citing security risks, Anthropic blocked the models altogether inside and outside the United States.

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The press event was initially intended to mark Anthropic’s expansion in Korea, but questions about the recent export control and Project Glasswing dominated. Glasswing is a cybersecurity initiative launched by the California-based firm to grant only select entities access to Mythos in response to the potentially disruptive capabilities of the model.<br>Tom Brown, one of the company's co-founders, was originally slated to appear with Anthropic Korea Representative Director Choi Ki-young, but was replaced at the last minute.

Anthropic Managing Director of International Chris Ciauri speaks during a press conference at Conrad Seoul in western Seoul on July 17.<br>ANTHROPIC KOREA

Korea has been at the center of the ongoing controversy surrounding the White House order, after the Washington Post reported that a Korean telecommunications company with access to Claude Mythos triggered the U.S. directive due to its suspected ties to China.<br>Project Glasswing currently has approximately 150 partners — according to Anthropic — including firms such as Google, Nvidia, Microsoft and Apple. Korean participants include Samsung Electronics, SK hynix and SK Telecom.<br>Mythos can detect flaws in what had been believed to be unbreakable code, meaning that in theory, a single prompt by a bad actor could have devastating repercussions. Anthropic claims that the impact could be so immense that it withheld Mythos from public access.<br>Despite the heightened attention, the executives declined to comment on most questions related to the shut-down of its top-tier AI models.<br>Instead, they devoted much of the time to emphasizing the strategic importance of the Korean market.<br>“We have a sound and growing user base consisting of developers and graphic designers,” Choi said, adding that Korea ranks at 12 in terms of usage.<br>Ciauri also cited Korea as one of the fastest-growing markets in the world, hinting at further investments and headcount for the region.<br>“We are deepening our investments in Korea. We already have started building a team as we have commercial people technical people policy and operation staff and we'll continue to grow that business quickly in the coming months,” he said.<br>Still, some industry insiders warn that the recurring clash with the U.S. government could undermine the reliability of Anthropic’s service.<br>“However, we disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people,” it stated following the measure.<br>BY PARK EUN-JEE [park.eunjee@joongang.co.kr]

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