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Anthropic’s Mythos 5 is back
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Anthropic’s Mythos 5 is back
The Trump administration approved a select group of users, but Fable 5 is still nowhere in sight.
by Hayden Field
Hayden Field
Senior AI Reporter
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Jun 27, 2026, 12:33 AM UTC
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Anthropic’s Mythos 5 is back
The Trump administration approved a select group of users, but Fable 5 is still nowhere in sight.
by Hayden Field
Hayden Field
Senior AI Reporter
Posts from this author will be added to your daily email digest and your homepage feed.
Follow See All by Hayden Field
Jun 27, 2026, 12:33 AM UTC
Part Of All the news about Anthropic’s new AI fight with the White House see all updates
Hayden Field
Hayden Field
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Follow See All by Hayden Field
is The Verge’s senior AI reporter. An AI beat reporter for more than five years, her work has also appeared in CNBC, MIT Technology Review, Wired UK, and other outlets.
After a rollercoaster negotiation process with the Trump administration that dragged on for two weeks, Anthropic’s Mythos 5 is finally back in action — at least, somewhat, for a select group of organizations, according to a letter from the government to Anthropic that was viewed by The Verge. Fable 5, however — the public-facing Mythos-class model — appears to still be in limbo, with no apparent timeline for a rollout agreement.
The letter, dated June 26th and sent by Commerce Secretary Howard Lutnick to Anthropic co-founder Tom Brown, who had been recently leading negotiations, states that there’s been a “revision to the license requirements” based on the fact that Anthropic has recently “worked with the U.S. government to address risks” associated with Mythos 5 and Fable 5.
Anthropic spokesperson Danielle Ghiglieri told The Verge in a statement that the company had “received notice from the US government that Mythos 5, our strongest cybersecurity model, can be redeployed to a small group of cyber defenders and infrastructure providers.” She added, “We are working to provision the approved set of providers and restore their access to Mythos 5 as quickly as possible. We are pleased to see this progress and continue to work with the government to expand access to Mythos 5 and make Fable 5 available for general use again.”
The US government did not lift the export control directive it hit Anthropic with two weeks ago, which barred any foreign national from accessing either model (including Anthropic’s own employees). Instead, the government essentially made an exception for Mythos 5, approving a select group of organizations for access the same way it did for OpenAI’s GPT-5.6,
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