Anthropic just had a fight with its biggest potential client.
The artificial intelligence company behind Claude filed a lawsuit Monday in the U.S. District Court for the Northern District of California naming the Departments of the Treasury, Commerce, State, Health and Human Services, Veterans Affairs, the General Services Administration and several other federal agencies as defendants.
Anthropic says the US government effectively blacklisted its AI systems from federal procurement and did so without following any of the legal procedures required to ban a supplier.
It says there was a lack of formal determination, interagency review, documented evidence and no evaluation of less restrictive alternatives such as conditional approval or safety audits.
According to the complaint, officials justified the restrictions internally on national security and supply chain grounds, then let the directive spread informally through centralized procurement channels until Anthropic was locked out of federal contracting across the board.
The timing makes this more than a procurement dispute.
The US government is in the midst of the largest AI adoption push in federal history, using OpenAI’s ChatGPT as its tool of choice. Agencies are deploying generative AI for cybersecurity, intelligence analysis, administrative automation, and internal decision making. The contracts are large, multi-year and increasingly central to how the government operates.
Being excluded from that market is not a minor business setback, but an existential competitive problem for any AI company that wants to be taken seriously at an institutional level.
Anthropic is asking the court to declare the restrictions illegal and block agencies from enforcing them. If he wins, the ruling would reopen federal contracting and potentially set a precedent for how far agencies can go in restricting AI providers on national security grounds without following their own rules.
The government has not publicly responded to the filing, but an Axios report on Tuesday noted that the White House was preparing an executive order formally directing the federal government to remove Anthropic’s AI from its operations, citing sources familiar with the matter.
