Full Breakdown
Anthropic Appeals Pentagon’s AI Blacklist Designation
By Drooid · · How we work
Core Event: Request for Rehearing
Anthropic PBC filed a petition with the U.S. Court of Appeals for the District of Columbia seeking a rehearing of the September panel decision that upheld the Pentagon’s designation of the company as a “supply-chain risk” to national security. The filing asks the full three-judge panel to reconsider the 2-1 ruling that affirmed the designation.
Background & Context
In 2025 the company signed a $200 million contract with the Department of Defense (DoD). Negotiations to deploy Anthropic’s Claude models on the DoD’s GenAI.mil platform collapsed later that year, prompting the Pentagon to label Anthropic a supply-chain risk in March 2026. The label barred federal contractors from using the company’s technology. Anthropic’s leadership had insisted that its models not be employed for mass surveillance of Americans or for lethal autonomous weapons, a stance the Pentagon said conflicted with national-security requirements.
Official Statements & Responses
Anthropic’s attorneys argue the designation was retaliation for the firm’s public AI-safety commitments, citing “straightforward evidence” that the DoD acted after the company refused to waive those safeguards. The petition notes that the Secretary of War described Anthropic as a national-security risk for the same reason.
The Pentagon, represented by Pete Hegseth, maintains that the designation follows legal authority to protect the U.S. supply chain and that the company’s restrictions are incompatible with defense needs.
U.S. District Judge Rita F. Lin, who previously ordered the ban lifted in a California case, characterized the Pentagon’s action as appearing motivated by retaliation rather than legitimate security concerns.