The standoff between Anthropic and the Pentagon has reached a preliminary conclusion — and it’s a clear win for Anthropic.
What happened
Federal Judge Rita F. Lin issued a preliminary injunction on Thursday blocking the Trump administration from enforcing its actions against Anthropic. Specifically, the order halts the Pentagon’s designation of Anthropic as a supply chain risk and Trump’s directive banning all federal agencies from using Claude.
The judge sided with Anthropic on the key arguments and didn’t mince words. She called the government’s actions a punishment for Anthropic’s public criticism — classic illegal First Amendment retaliation. Even more pointedly, she wrote that nothing in the governing statute supports the idea that an American company can be branded a potential adversary simply for disagreeing with the government.
The backstory
This conflict had been building since February. Defense Secretary Pete Hegseth designated Anthropic as a supply chain risk — a label previously reserved for foreign adversaries. Trump followed up on Truth Social, ordering all federal agencies to immediately stop using Claude.
The real trigger? Failed contract negotiations. Anthropic signed a $200 million contract with the Pentagon last July, but during deployment discussions, the company wanted assurances that Claude wouldn’t be used for fully autonomous weapons or mass surveillance. The Pentagon wanted unrestricted access. They couldn’t agree.
What it means
The preliminary injunction isn’t a final verdict — that could take months. But it’s a strong signal. The judge stayed the order for seven days to give the government a chance to appeal.
For Anthropic, it’s a significant relief. They were the first American company ever designated as a supply chain risk. Defense contractors including Amazon, Microsoft, and Palantir had to certify they weren’t using Claude in their military work.
Anthropic responded by expressing gratitude and emphasizing its continued focus on working productively with the government.
What strikes me about this story is that Anthropic didn’t back down. They had a clear line — no autonomous weapons, no mass surveillance — and they took on a conflict with the most powerful government in the world to defend it. The court sided with them, at least for now. Whether that holds remains to be seen.
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