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OpenAI Employee Withdraws Support From Anthropic Brief Over Policy Change
An OpenAI employee withdrew a signature from an amicus brief filed in support of Anthropic's lawsuit against the U.S. Department of War. The employee cited Anthropic's recent policy decision as the reason for the withdrawal.
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An OpenAI employee who signed an amicus brief supporting Anthropic in its lawsuit against the U.S. Department of War withdrew the signature on June 10, 2026. The employee stated the withdrawal followed Anthropic's policy decision. The employee added that the decision prevented a truthful argument that Anthropic does not present a supply chain risk.
Background on the Lawsuit In March 2026, more than 30 employees from OpenAI, Google, and Google DeepMind filed an amicus brief backing Anthropic's legal challenge to the Pentagon. The brief was submitted in the case Anthropic PBC v. U.S. Department of War. The filing occurred while Anthropic pursued litigation over U.S. government policies on autonomous warfare systems.
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