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AI Giant Anthropic Sues Federal Government Over Alleged Retaliation and Blacklisting
Military Defense One Mar 9, 2026

AI Giant Anthropic Sues Federal Government Over Alleged Retaliation and Blacklisting

Anthropic, a leading artificial intelligence company, has initiated legal action against over a dozen federal agencies, including the Department of Defense and Secretary Pete Hegseth. The lawsuit, filed on March 9 in the U.S. District Court in the Northern District of California, claims the government is illegally punishing Anthropic for its refusal to alter the terms of use for its AI product, Claude, to accommodate specific Department of Defense applications. These applications reportedly included surveillance of U.S. citizens and the control of autonomous weapons, which Anthropic's usage policy does not permit.

The company asserts that the government's subsequent actions, such as designating Anthropic as a supply-chain risk and a directive from President Donald Trump for all federal agencies to cease using its technology, constitute illegal retaliation. Anthropic argues these measures violate its due process rights by lacking adequate notice and a meaningful hearing, causing irreparable harm. A separate lawsuit in the D.C. Circuit Court of Appeals also seeks judicial review of the supply chain risk label, citing violations of the Federal Acquisition Supply Chain Security Act of 2018 and constitutional rights.

Anthropic's legal filings contend that the government's actions stem from "pure ideological disagreement" rather than legitimate security concerns, noting that the Pentagon had previously provided positive feedback on Claude's capabilities. White House spokeswoman Liz Huston, however, stated that the Trump administration aims for the military to operate under the U.S. Constitution, not "any woke AI company’s terms of service," emphasizing that the President will not allow any company to jeopardize national security. This legal battle highlights a significant clash between technological innovation, corporate policy, and government authority.

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