Federal Judge Halts Pentagon’s Blacklisting of AI Startup Anthropic

Court order rules that Pentagon acted illegally, punishing AI company for criticism of government.

Published On 28 Aug 202628 Aug 2026

A U.S. judge has prevented the Pentagon from blacklisting the technology firm Anthropic.

In a 59‑page order issued Thursday evening, District Judge Rita Lin determined that the Department of Defense acted unlawfully by labeling the company a national‑security supply‑chain risk.

The ruling marks the latest development in Anthropic’s high‑stakes dispute with the U.S. military over AI safety in combat operations, and the government is expected to appeal.

The judge’s order rebuked the Pentagon, stating it had singled out and penalized Anthropic for publicly criticizing the Defense Department’s position on battlefield AI deployment.

“The empty invocation of national security is not a blank check to punish and retaliate against government critics,” Lin, an appointee of former President Joe Biden, wrote.

Autonomous weapons and domestic surveillance

Anthropic’s lawsuit filed in a California federal court claims that Defense Secretary Pete Hegseth exceeded his authority by designating the firm a national‑security supply‑chain risk.

Hegseth’s action, which barred Anthropic from military contracts, came after the company refused to permit the military to employ its Claude AI models for U.S. surveillance or autonomous weapons.

Anthropic contends that AI models are insufficiently reliable for autonomous weapons and opposes domestic surveillance, while the Pentagon asserts that private firms should not limit military operations.

Company executives warn that the ban could result in billions of dollars of lost revenue.

During a July 30 hearing, Judge Lin characterized the government’s stance as “really troubling” and “at odds … with the First Amendment,” noting that the record had deteriorated for the government over time.

In the same hearing, Department of Justice lawyers argued that AI models are “so staggeringly enormous and opaque” that the Pentagon cannot assess them as it would physical equipment.

First use of obscure statute

Anthropic welcomed the ruling, saying it remains “focused on working productively with the government to harness AI for our national security so all Americans benefit from this technology.”

The designation was the first time a U.S. company has been publicly labeled a supply‑chain risk under an obscure procurement statute intended to protect military systems from foreign sabotage.

In its lawsuit, Anthropic alleged the government violated its constitutional rights to free speech and due process by retaliating against its views on AI safety without allowing it to contest the claim.

The lawsuit described the decision as unlawful, unsupported by facts, and inconsistent with the military’s prior praise of Claude.

There was no immediate comment from the Pentagon on the ruling.

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