Anthropic’s removal from classified military networks contrasts with OpenAI’s new agreement with the U.S. Army to deploy AI models under stated safety principles.
On February 27, 2026, the United States government banned Anthropic from classified military networks after the company refused to permit flexibility in AI use for military applications, including mass surveillance and autonomous weapons. Hours later, on February 28, OpenAI announced an agreement with the U.S. Army to deploy AI models in such networks under defined safety principles. The ban on Anthropic included a 'supply chain risk' designation, jeopardizing its planned IPO and removing its role in setting AI military standards, while OpenAI’s move reflects greater alignment with national security directives.