Anthropic PBC v. United States Department of War, et al

  1. October 15, 2026

    Anthropic Urges DC Circ. To Revisit Defense Supply Risk Ban

    Anthropic has urged the D.C. Circuit to reconsider a split panel's decision allowing the Pentagon to exclude Claude artificial intelligence models from its supply chain, saying the decision, if left standing, puts U.S. companies at risk of punishment for refusing Pentagon demands.

  2. September 29, 2026

    DC Circ. Anthropic Ruling Could Chill Contractor Speech

    The D.C. Circuit's decision backing the U.S. Department of Defense's removal of Anthropic from its supply chain was based on a broad reading of the Federal Acquisition Supply Chain Security Act, which could lead contractors to be more careful about publicizing disputes with the department.

  3. September 25, 2026

    DC Circ. Denies Anthropic's Security Risk Suit Against DOD

    A divided D.C. Circuit panel ruled Friday the Pentagon was justified in citing national security concerns to exclude Anthropic's suite of Claude artificial intelligence models from its supply chain.

  4. July 20, 2026

    Top Gov't Contracting Cases To Watch In The 2nd Half Of 2026

    Federal courts in the latter half of 2026 are expected to decide if the Trump administration overstepped by designating Anthropic a supply chain risk to national security and whether the False Claims Act's qui tam provisions pass constitutional muster, potentially affecting the government's ability to tackle fraud.

  5. June 18, 2026

    Anthropic Files Protective Appeal Of Pentagon Designation

    Anthropic has filed a protective petition challenging the U.S. Department of Defense's June 3 decision reaffirming the artificial intelligence giant's designation as a supply-chain risk, asking the D.C. Circuit to consolidate it with the designation challenge already pending before the appeals court.

  6. May 19, 2026

    Anthropic Says Defense Dept. Smeared It Over AI Red Lines

    Potential splits emerged Tuesday between D.C. Circuit judges questioning the legality of the U.S. Department of Defense's move to bar Anthropic from government contracting, with the AI company claiming it had been targeted and smeared as a national security threat for nothing more than a contract dispute.

  7. May 07, 2026

    Pentagon Defends Anthropic Security Risk Label At DC Circ.

    The U.S. Department of Defense told the D.C. Circuit on Wednesday that Defense Secretary Pete Hegseth acted well within his statutory discretion when he labeled Anthropic PBC a supply-chain risk to U.S. national security, rejecting Anthropic's claims of retaliation.

  8. April 22, 2026

    Anthropic Slams Hegseth's Security Risk Label At DC Circ.

    Anthropic Wednesday asked the D.C. Circuit to overturn the U.S. Department of Defense's action branding it a supply chain risk, saying the decision was retaliation for the artificial intelligence company's refusal to provide the Trump administration with technology for mass domestic surveillance or fully autonomous weapons.

  9. April 08, 2026

    DC Circ. Allows DOD To Ax Anthropic Contracts Amid Review

    The D.C. Circuit Wednesday shot down Anthropic's request for an emergency order temporarily barring the U.S. Department of Defense from designating the artificial intelligence company as a national security risk while Anthropic's appeal plays out, although it agreed to expedite the appeal.

  10. March 20, 2026

    DOD Calls Anthropic's Supply Chain Risk Case Premature

    The Pentagon urged the D.C. Circuit to reject Anthropic's attempt to halt the agency's designation of the artificial intelligence company as a supply chain risk to national security, arguing the designation is limited in scope, and that Anthropic's motion is premature.