Anthropic initiated lawsuits against the U.S. government after being classified as a national security supply chain risk by the Pentagon, following the company’s refusal to lift military-use restrictions on its artificial intelligence platform, Claude. The action has raised concerns for investors given its significant implications for Anthropic’s federal business and broader government relationships.
The legal action was filed in both the U.S. District Court for Northern California and the U.S. Circuit Court of Appeals for Washington, D.C. Anthropic contends the government’s response extends beyond a standard contract dispute and constitutes illegal retaliation resulting from a protracted disagreement over potential military applications of its AI tools.
The dispute stems from the Department of War’s demand that Anthropic remove restrictions designed to prevent its AI from being used in autonomous weapons systems and domestic surveillance. Anthropic’s CEO, Dario Amodei, warned Defense Secretary Pete Hegseth prior to the lapse of negotiations about the dangers associated with deploying untested AI in autonomous warfare and ultimately declined to remove those protections.
Officials at the Pentagon have argued that decisions concerning warfare technology should not be determined by individual technology providers. After negotiations failed, the Pentagon formally labeled Anthropic as a supply chain risk, instituting a ban on its products for defense use. President Donald Trump also announced expanded bans covering other federal departments, including Treasury and State.
Anthropic stated in court filings that these restrictions threaten the company’s reputation, financial standing, and its constitutional rights. The lawsuits seek to reverse the “supply chain risk” designation and prevent enforcement of any bans.
The company highlighted that the recent federal actions are causing significant financial damage—alleging lost business worth hundreds of millions of dollars—and claims that these moves bypass required procedures and overstep executive authority. Anthropic’s legal complaints also name the Treasury, State, Commerce, and other agencies, along with their top officials.
War Department records indicate Anthropic’s Claude system has previously been deployed on classified networks to aid intelligence work, targeting analysis, and battlefield scenario planning in collaboration with partners such as Palantir. Claude has also supported routine data analytics across government agencies in roles similar to public-facing AI assistants.
The Pentagon’s decision marks the first instance of a U.S.-based technology company receiving a national security supply chain risk designation, a measure previously reserved for foreign firms such as Huawei deemed threatening to national interests.
Anthropic’s lawsuits aim to overturn the Pentagon designation and halt any associated enforcement. The outcome of this legal dispute could set a precedent for government-technology company relations in the future.
