Pentagon Moves to Replace Anthropic AI After Dispute Over Military Use

After a publicly messy fallout between the US Department of War (or the Pentagon) and the AI startup behind Claude, Anthropic, a new report from Bloomberg suggests that disagreement has now escalated into policy. The Trump administration has labelled Anthropic a “supply-chain risk,” putting its existing and future defence contracts in jeopardy.

Inside the Pentagon, the shift is already underway. “The Department is actively pursuing multiple LLMs into the appropriate government-owned environments,” said Cameron Stanley, the military’s chief digital and AI officer. “Engineering work has begun… and we expect to have them available for operational use very soon.”

The transition will not happen overnight. Anthropic’s tools, particularly its Claude model, had become embedded in certain workflows, including classified environments where few alternatives were previously approved. Replacing that kind of infrastructure takes time, especially when it connects to systems like Palantir’s Maven platform, which supports military operations.

Still, the Pentagon appears willing to absorb that friction. A six-month window has been set to phase out Anthropic’s technology and bring in other providers.