Court upholds Pentagon's Anthropic contract ban
A federal appeals court in Washington ruled 2-1 that the Pentagon may keep Anthropic off military contracts over its usage limits.
In short
The Pentagon may keep Anthropic out of military contracts for now, because a federal appeals court in Washington upheld its supply-chain-risk designation in a 2-1 decision.
At a glance
- A federal appeals court in Washington upheld the Pentagon designation by a 2-1 vote.
- Anthropic refuses to allow its technology for autonomous weapons or mass surveillance.
- Defense Secretary Pete Hegseth argued safety limits could make military operations fail.
- In late August 2026, a San Francisco judge blocked a parallel designation as retaliation.
- The label has reportedly cost Anthropic billions and weighs on its planned IPO.
Anthropic stays shut out of Pentagon contracts for now. A federal appeals court in Washington upheld the Defense Department's decision to label the company a national security supply chain risk, splitting 2-1. The bar remains in force while the litigation continues.
The question the court answered
The dispute was never about whether Anthropic could deliver working systems. It was about whether the Defense Department may exclude a supplier whose usage policy rules out certain deployments. The majority sided with the department. Defense Secretary Pete Hegseth had argued that overly constrained AI models could cause military operations to fail.
Anthropic bars its technology from autonomous weapons and from mass surveillance. Those are the limits the company declined to drop, and they are the reason the exclusion exists.
Two courts pulling opposite ways
This is the second ruling in the same fight. In late August 2026, a federal judge in San Francisco blocked a parallel designation issued under a different law, describing it as unlawful retaliation for Anthropic's stance on AI safety. The Washington decision does not overturn that order, but it points the other direction on the same underlying conflict.
The company therefore holds a win in California and a loss in the capital at the same time.
An unresolved contradiction
One arm of the national security apparatus treats Anthropic as a supply chain risk. Meanwhile, according to the report, US intelligence agencies are heavy users of the company's models. Nothing in the ruling reconciles those two positions.
Parts of the tech industry and former military officials have backed Anthropic in the case. The report frames the administration's motive in political terms, saying it regards the company as left-leaning.
What it costs
The designation has reportedly cost Anthropic billions and is hurting its planned IPO. The reporting available here puts no figure on specific contracts or on lost revenue, so neither is stated as a number.
What we could not confirm
Two of the three outlets assigned for this story could not be opened during reporting. That leaves three things open: the exact wording of the majority opinion, the statute the designation rests on, and whether a written dissent exists. A 2-1 split implies one judge disagreed, but we have not read that reasoning. These gaps are marked as gaps rather than rounded into claims.
FAQ
Why did the Pentagon blacklist Anthropic?
Because the company keeps certain deployments off-limits. The Defense Department treats that restriction as a national security supply chain risk and bars it from military contracts.
Which uses does Anthropic refuse?
Autonomous weapons and mass surveillance. Both limits sit in the company's usage policy, and Anthropic declined to lift them during the dispute with the Pentagon.
Can Anthropic still fight the designation?
The appeals court split 2-1, and a San Francisco judge blocked a parallel designation in late August 2026, so the broader legal fight is not over.
