Anthropic warns that its ongoing conflict with the Pentagon could lead to losses reaching billions of dollars. The company reports that the fallout from canceled contracts and halted partnerships threatens both its defense sector ambitions and its broader commercial business operations.

The dispute began in late 2025 during negotiations for a potential $200 million contract with the US Department of Defense. Anthropic refused to remove restrictions preventing its AI from being used in autonomous lethal weapons and mass surveillance, leading to a collapse in talks in early 2026.

In February 2026, Defense Secretary Pete Hegseth designated Anthropic a supply chain risk, and President Trump subsequently ordered federal agencies to cease using the company's technology. Anthropic filed a lawsuit, claiming the government's actions were retaliatory.

Legal proceedings have yielded mixed results. In August 2026, judge Rita Lin blocked broader sanctions, but in September 2026, the D.C. Circuit upheld the specific supply chain risk designation, citing national security concerns regarding the company's software restrictions.

As of early October 2026, the Pentagon has moved approximately 90% of relevant classified workloads to alternative providers. The supply chain risk label further discourages military vendors from working with Anthropic, potentially impacting its commercial partnerships.