White House chief of staff to meet with Anthropic CEO about dangerous new Mythos model, official says

A White House official, who requested anonymity to discuss the planned meeting Friday, said the administration is engaging with advanced AI labs about their models and the security of software. The official stressed that any new technology that might be used by the federal government would require a technical period for evaluation.

The meeting comes after tensions have run hot between the Trump administration and the safety-conscious Anthropic, which has sought to put guardrails on the development of AI to minimize any potential risks and maximize its economic and national security benefits for the U.S.

President Donald Trump tried to stop all federal agencies from using Anthropic’s chatbot Claude over the company’s contract dispute with the Pentagon, with Trump saying in a February social media post that the administration “will not do business with them again!”

Defense Secretary Pete Hegseth also sought to declare Anthropic a supply chain risk, an unprecedented move against a U.S. company that Anthropic has challenged in two federal courts. The company said it wanted assurance the Pentagon would not use its technology in fully autonomous weapons and the surveillance of Americans. Hegseth said the company must allow for any uses the Pentagon deemed lawful.

U.S. District Judge Rita Lin issued a ruling in March that blocked the enforcement of Trump’s social media directive ordering all federal agencies to stop using Anthropic products.

Anthropic declined to speak about the meeting in advance.

The San Francisco-based Anthropic has said the new Mythos model it announced on April 7 is so “strikingly capable” that it is limiting its use to select customers because of its ability to surpass human cybersecurity experts in finding and exploiting computer vulnerabilities.

And while some industry experts have questioned whether Anthropic’s claims of too-powerful AI technology were a marketing ploy, even some of the company’s sharpest critics have suggested that Mythos might represent a further advancement in AI.

One influential Anthropic critic, David Sacks, who was the White House’s AI and crypto czar, said people should “take this seriously.”

“Anytime Anthropic is scaring people, you have to ask, ‘Is this a tactic? Is this part of their Chicken Little routine? Or is it real?’” Sacks said on the “All-In” podcast he co-hosts with other tech investors. “With cyber, I actually would give them credit in this case and say this is more on the real side.”

Sacks said, “It just makes sense that as the coding models become more and more capable, they are more capable at finding bugs. That means they’re more capable at finding vulnerabilities. That means they’re more capable at stringing together multiple vulnerabilities and creating an exploit.”

The model’s potential benefits, as well as its risks, have also attracted attention outside the U.S.

The United Kingdom’s AI Security Institute said it evaluated the new model and found it a “step up” over previous models, which were already rapidly improving.

“Mythos Preview can exploit systems with weak security posture, and it is likely that more models with these capabilities will be developed,” the institute said in a report.

Anthropic has also been in talks with the European Union about its AI models, including advanced models that haven’t yet been released in Europe, European Commission spokesman Thomas Regnier said Friday.

Axios first reported the scheduled meeting between Wiles and Amodei.

When it announced Mythos, Anthropic said it was also forming an initiative called Project Glasswing, bringing together tech giants such as Amazon, Apple, Google and Microsoft, along with other companies like JPMorgan Chase, in hopes of securing the world’s critical software from “severe” fallout that the new model could pose to public safety, national security and the economy.

“We’re releasing it to a subset of some of the world’s most important companies and organizations so they can use this to find vulnerabilities,” said the Anthropic co-founder and policy chief, Jack Clark, at this week’s Semafor World Economy conference.

Clark added that Mythos, while ahead of the curve, is not a “special model.”

“There will be other systems just like this in a few months from other companies, and in a year to a year-and-a-half later, there will be open-weight models from China that have these capabilities,” he said. So the world is going to have to get ready for more powerful systems that are going to exist within it.”

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O’Brien reported from Providence, R.I. AP business reporter Kelvin Chan contributed to this report from London.