Anthropic has formally requested that the US Court of Appeals for the District of Columbia Circuit rehear a case regarding its designation as a supply chain risk. This follows a September 25 ruling where a three-judge panel upheld the government's decision by a 2-1 vote. The company argues that the majority misinterpreted the law and failed to address evidence suggesting the designation was retaliation for its public stance on AI safety.

The dispute originated from failed contract negotiations between Anthropic and the Department of Defense. The company sought to restrict its technology from being used for mass surveillance or autonomous weapons, while the government refused to accept such limitations. In March, the Department of Defense declared Anthropic a supply chain risk, instructing federal agencies to cease business with the firm.

The legal battle involves two separate cases. In San Francisco, Judge Rita F. Lin ruled in August that the government must lift the ban on using Anthropic's technology, citing potential retaliatory motives. Conversely, the Washington-based panel ruled the designation legal, with Judge Gregory Katsas noting concerns that Anthropic might alter its Claude model to prevent it from performing national security tasks.

This case, identified as Anthropic v. Department of Defense (26-01049), highlights a critical tension between private AI developers and federal authorities. The court must determine whether the government or private enterprises hold ultimate control over the safety mechanisms of advanced AI technology as developers seek to prove the profitability of their models to investors.