Anthropic Sues Defense Department Over Supply-Chain Risk Label

Anthropic Sues Defense Department Over Supply-Chain Risk Label

Anthropic filed lawsuits on March 10, 2026 in both California and Washington, DC after the US Department of Defense designated the company as a supply-chain risk. The label could effectively bar government contractors from using Anthropic's Claude models in any defense-related work.

Industry Support

In an unusual show of solidarity, more than 30 employees from OpenAI and Google DeepMind signed a public statement supporting Anthropic's legal challenge. The cross-company support suggests the AI industry views the designation as potentially harmful to the broader ecosystem.

Implications

The dispute highlights growing tensions between the AI industry and parts of the federal government over how AI companies are evaluated for national security purposes. Time Magazine profiled Anthropic in a cover story this same week, calling it "the most disruptive company in the world."