Court Temporarily Blocks Pentagon’s Ban on Anthropic as White House AI Adviser Exits

01 Judge grants Anthropic preliminary injunction against Pentagon blacklisting

A federal judge has granted Anthropic a preliminary injunction, temporarily blocking the Defense Department’s recent restrictions that had treated the company as a supply‑chain risk. The injunction means the administration must pause enforcement of the designation while the company’s lawsuit moves through the courts.

Anthropic sued to reverse what it described as a government blacklisting; court filings and reports say the Pentagon designated the company a supply‑chain risk because of concerns tied to the company’s posture and communications. The preliminary injunction does not resolve the merits, but it halts the practical effects of the designation while the legal process plays out.

Industry reaction centers on how the ruling will affect government procurement and competition among major AI providers. The pause gives Anthropic breathing room to keep serving paying customers and to press its legal challenge; it also signals that courts will scrutinize how rapidly the government applies supply‑chain labels to AI vendors.

• The injunction is temporary: it pauses Pentagon restrictions but leaves the underlying dispute to be decided later in court.
• The ruling reduces immediate operational risk for Anthropic’s government and commercial engagements while litigation continues.
• Expect further legal filings and possible appeals as both the company and the administration press their arguments.