Anthropic’s Mythos 5 is back

After a volatile two-week negotiation process with the Trump administration, Anthropic’s Mythos 5 game is finally back in action — at least, to some extent, for a select group of organizations, according to a letter from the government to Anthropic that I reviewed Edge. However, it appears that Fable 5 – the model for the public-facing Mythos class – is still in limbo, with no clear timeline for a release agreement.

The letter, dated June 26 and sent by Commerce Secretary Howard Lutnick to Anthropic co-founder Tom Brown, who was recently leading the negotiations, states that there is a “review of licensing requirements” based on the fact that Anthropic has “recently worked with the US government to address risks” associated with Mythos 5 and Fable 5.

Anthropologie spokeswoman Danielle Giglieri said Edge The company “received notification from the US government that Mythos 5, our most robust cybersecurity model, may be redeployed to a small group of cyber defenders and infrastructure providers,” a statement said. She added: “We are working to get the provider pool approved 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 public use again.”

The US government did not file Export Control Directive Anthropic went on strike two weeks ago, preventing any foreign nationals from accessing either model (including Anthropic employees). Instead, the government essentially made an exception for Mythos 5, approving a select group of organizations for access in the same way it did with OpenAI GPT-5.6announced earlier today. Under this exception, Anthropic employees who are not U.S. citizens and Members of approved organizations who are not US citizens all have the green light to access Mythos 5, according to the letter.

“These efforts have made significant progress,” Lutnick wrote. “In addition, Anthropic has committed to working with the US government on protocols, standards, and releases for[Mythos Class Models]. In light of this progress… I have determined that appropriate safeguards are in place to allow certain trusted partners access to the Claude Mythos Model 5.”

pressure has been built The Trump administration has asked the Trump administration to change the type of regulatory environment it has recently adopted on a case-by-case basis, particularly as Anthropic’s competitors’ cybersecurity-focused models continue to improve — and even outperform them on some cybersecurity-focused benchmarks. Pressure has also been growing within the US AI industry, particularly concerns about the progress China could make in AI while major US AI labs have been sidelined. In addition, there was the fact that higher government departments in the United States, such as the National Security Agency, did this Loss of access To myth 5.

Now, Anthropic has essentially the same deal as OpenAI: releasing the model in a limited preview setting, only to approved institutions, such as trusted institutions and the US government itself. Both AI labs hope there will be more general availability soon, both for enterprise deals and for general access (as with Anthropic’s Fable 5), but it will ultimately be up to the Trump administration. Although many have called for regulation of AI, including AI labs themselves, A Current consensus Some tech leaders said the past two weeks were not the way to do it.

In fact, OpenAI wrote in the company’s GPT-5.6 Blog post“We do not believe this type of government access process should become the default in the long term. It preserves the best tools from users, developers, enterprises, cyber defenders, and global partners who need them. We are taking this short-term step because we believe it is the strongest path to broader availability in the coming weeks, as we work with the administration to develop the Cyber ​​Executive Order framework and a repeatable process for future model releases.”

“All other requirements in the June 12 letter remain in effect until further notice,” Lutnick wrote in his letter to Anthropic. He added: “I reserve the right to re-evaluate and modify the scope of the licensing requirements in (Mythos 5 and Fable 5) if circumstances change.”