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Anthropic's Claude is still being used by US military
05 Mar 2026

Anthropic, a leading artificial intelligence (AI) lab, finds itself in a strange position.

The company's AI tool is still being used as part of the ongoing US-Iran conflict but is also losing many of its defense-tech clients. This comes after a dispute with the Department of Defense (DoD).

President Donald Trump directed civilian agencies to discontinue use of Anthropic products. The company was given six months to wind down its operations with the Department of Defense.

Current status of Anthropic's AI models
Ongoing usage

Despite the confusion created by overlapping restrictions, Anthropic models are still being used for many targeting decisions in the ongoing conflict.

Secretary of Defense Pete Hegseth has promised to designate the company as a supply-chain risk but no official action has been taken yet.

This means there are no legal barriers preventing their system from being used at present.

Integration with Maven system
System integration

The Washington Post recently reported on the integration of Anthropic's systems with Palantir's Maven system.

As Pentagon officials planned strikes, these systems "suggested hundreds of targets, issued precise location coordinates, and prioritized those targets according to importance."

This highlights the role of Anthropic in real-time targeting and target prioritization during military operations.

Shift to alternative AI models
Client exodus

In light of the ongoing situation, several companies in defense industry have started replacing Anthropic models with competitors.

According to a Reuters report, Lockheed Martin and other defense contractors began this process earlier this week.

Subcontractors are also facing similar challenges with a managing partner at J2 Ventures telling CNBC that 10 of his portfolio companies "have backed off of their use of Claude for defense use cases and are in active processes to replace the service with another one."