FOIA documents show OpenAI, Anthropic, Google, and xAI embedded deep in Pentagon AI work
Contracts worth up to $200M per company, obtained via a FOIA lawsuit, detail two-way data sharing and embedded engineers -- and Anthropic's refusal to sign a follow-up deal without bans on domestic surveillance and autonomous weapons use.
The Intercept reported on September 8, 2026 that a FOIA lawsuit produced more than 400 pages of Defense Department contract documents -- worth up to $200 million per company -- with Anthropic, Google, OpenAI, and xAI, originally signed in July 2025, to build AI prototypes for warfighting, automated decision-making, logistics, and military intelligence. The terms include two-way data sharing (the frontier labs receive DoD operational data; the Pentagon receives capability briefings), tabletop war-game sessions, and OpenAI engineers embedded directly in military commands.
Anthropic's refusal, and the ban that followed it
Anthropic declined to sign a follow-up deployment agreement without contractual protections against domestic surveillance and autonomous weapons use, per the documents. Then-Defense Secretary Pete Hegseth designated Anthropic a "supply chain risk" in March 2026, banning its services from government use -- a decision a federal judge overturned in August 2026. Separately, the documents show the Pentagon requested OpenAI minimize instances of its model refusing military requests in draft materials; both the Pentagon and OpenAI say those provisions weren't included in the final agreements.
The contractual language behind the headline
The contracts specify that the work must "improve military advantage, military utility, or enhance military decision making" across military branches -- broad language covering a wide range of potential end uses. For any enterprise AI buyer evaluating a frontier lab's own governance posture, this is the concrete documentation behind an abstract question: how a vendor actually negotiates acceptable-use terms with its largest and most demanding government customer, not just what it says publicly about responsible deployment.