Anthropic tells judge billions at stake if US shuns AI tool

In a joint letter to the judge, dozens of AI scientists and researchers from OpenAI and Google — competitors and, in Google’s case, also an investor — expressed support for Anthropic.

• Anthropic risks billions in revenue from US supply-chain issues
• Judge moved hearing on Anthropic's request up to March 24
• Tech industry, including OpenAI and Google, supports Anthropic

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Anthropic PBC told a judge it could lose as much as billions of dollars in revenue this year and urged quick action on its request to block the Trump administration’s declaration of the company as a US supply-chain risk after a blowup with the Pentagon over artificial intelligence safety issues.

The startup made a case for urgency to US District Judge Rita F. Lin at a hearing in San Francisco a day after Anthropic sued the Defense Department over the supply-risk designation. The dispute stems from a high-stakes dispute over safeguards on Anthropic’s AI technology.

Michael Mongan, an attorney for Anthropic, argued Tuesday that the federal government’s actions have led to more than 100 enterprise customers contacting the company to express doubt about continuing their work with Anthropic.

He also said that a financial services company paused its negotiations with Anthropic regarding a $50 million contract. In all, Mongan said that Anthropic’s chief financial officer has estimated harm to its 2026 revenue could range from hundreds of millions of dollars to billions of dollars.

Mongan asked for a commitment from the federal government that it would not take any retaliatory actions against Anthropic before the hearing — such as by issuing an executive order impacting the AI startup.

“I’m not prepared to offer any commitments on that issue,” said James Harlow, a lawyer for the Justice Department.

A hearing on Anthropic’s request had been set for April 3. The judge moved it up to March 24.

Anthropic wants the judge to remove the supply-chain risk designation and require US agencies to withdraw directives related to it. The company claims it is being shut out for disagreeing with the administration and argues the legal principles at stake affect every federal contractor whose views the government dislikes.

Last week, the Pentagon formally notified Anthropic of its determination. Chief Executive Officer Dario Amodei then issued a statement saying the government’s actions were not “legally sound” and had left the company with “no choice but to challenge it in court.”

Anthropic has drawn support from the tech industry.

In a joint letter to the judge, dozens of AI scientists and researchers from OpenAI and Google — competitors and, in Google’s case, also an investor — expressed support for Anthropic. They said existing AI systems can’t “safely or reliably handle fully autonomous lethal targeting, and should not be available for domestic mass surveillance of the American people.”

Microsoft, which owns a stake in OpenAI, filed its own brief urging a judge to temporary block the government’s moves because they have the “potential to delay all ongoing DoW contracting for IT products and services.” Microsoft also warned of significant costs for government suppliers to remove Anthropic software and that the uniqueness of Anthropic’s products may leave some with no alternatives.