Anthropic Sues Trump Administration to Overturn Department of Defense 'Supply Chain Risk' Blacklisting

Anthropic filed lawsuits in two federal courts after the Department of Defense formally labeled the company a 'supply chain risk' and President Trump ordered federal agencies to stop using its Claude chatbot.

“Last week, a Pentagon official said the two sides were no longer in active talks”

ABC

The company asked courts to overturn the Pentagon's designation and related government directives, called the actions unprecedented and unlawful, and sought judicial relief while saying it remains willing to engage with the government.

ABC

Anthropic's filings name multiple agencies and argue the designation has already curtailed government and contractor use of Claude.

Anthropic insisted on two 'red lines' forbidding mass domestic surveillance and fully autonomous weapons.

Defense officials insisted on contractual language allowing the military use of models for "any lawful" purpose.

abcnews

Those clashes escalated after a February meeting between CEO Dario Amodei and Defense Secretary Pete Hegseth.

The escalation led Hegseth to announce the supply-chain designation and President Trump to direct agencies to cease using Claude on a six-month timeline.

Anthropic’s complaints argue the designation and related directives were procedurally deficient and constitutionally barred.

“"These actions are unprecedented and unlawful," the filing in the U”

abcnews

The filings claim the government failed to follow procurement and Administrative Procedure Act processes and misused a supply‑chain statute normally aimed at foreign threats.

They also say the government engaged in unlawful retaliation that violates Anthropic’s First and Fifth Amendment rights.

The company asked courts to block enforcement and to invalidate the Pentagon’s finding, saying the actions inflicted immediate economic and reputational harm.

The designation’s immediate fallout included contract disruptions and market consequences.

Anthropic warned of lost business and said some partners paused use.

BFMTV

Reporting says the label forced some defense contractors to cut ties and spooked customers and investors.

At the same time, rival vendors moved quickly, with OpenAI securing a Pentagon deal shortly after the dispute.

Microsoft and cloud providers clarified that Anthropic models remain available for non-DoD customers.

The clash has drawn wide attention and prompted criticism and legal concern.

“Anthropic had already announced it, but now it’s official”

BFMTV

Tech trade groups, prominent researchers and former national-security officials warned the designation could chill innovation and silence safety debate.

Bolsamania

More than 30 AI researchers filed briefs backing Anthropic.

Observers noted the rarity of applying an at-risk supply-chain label to a U.S. firm — historically the tool targeted foreign adversaries — and said this raises questions about precedent and congressional oversight of AI procurement and surveillance policy.