Overview
- Anthropic sued in federal court in California and the D.C. Circuit to void the designation and is seeking immediate injunctive relief, including a temporary restraining order to keep serving military partners.
- The Pentagon’s label, a tool typically used against foreign-linked suppliers, cuts Anthropic off from defense work and requires contractors to certify they are not using Claude, with a six-month wind‑down in place.
- President Trump directed all federal agencies to stop using Anthropic’s technology, expanding the impact beyond the Defense Department.
- More than 30 researchers from OpenAI and Google/DeepMind filed an amicus brief supporting Anthropic’s position and its request for temporary relief.
- Legal scholars have questioned the statute’s use against a U.S. firm as OpenAI moved to supply models to the Pentagon, and reporting indicates Claude remains embedded in classified workflows tied to recent Iran operations.