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A Rare and Controversial Blacklist

National security experts say the government’s designation is highly unusual.

Supply-chain risk labels are typically applied to foreign contractors from rival nations that might pose espionage or sabotage risks.

Applying the label to a U.S.-based company like Anthropic, experts say, is virtually unheard of.

The designation followed a February meeting between Amodei and Pete Hegseth, the U.S. Secretary of Defense.

After the Pentagon informed Anthropic of the decision, President Trump wrote on social media that all federal agencies would stop using the company’s technology.

AI Power Struggle Inside Classified Systems

The Pentagon-Anthropic AI dispute is unfolding as the U.S. military increasingly integrates artificial intelligence into intelligence analysis, targeting systems, and operational planning.

Anthropic was once the first frontier AI developer approved for use on classified government networks.

But since tensions escalated, Pentagon officials say other AI systems have been cleared for classified use, including tools from xAI, founded by Elon Musk, and ChatGPT, developed by OpenAI.

Reports of Military AI Use

According to reporting by The Wall Street Journal, Anthropic’s Claude system has already played roles in sensitive military operations.

The publication reported the technology was used during the operation that led to the arrest of Nicolás Maduro, Venezuela’s leader, and in intelligence work related to the U.S. conflict with Iran.

Those claims have not been independently verified.

Still, the reports illustrate how deeply artificial intelligence is becoming embedded in modern military strategy.

Cooperation With Defense Contractors

Despite its resistance to lethal autonomous weapons and mass surveillance, Anthropic says it has supported national security missions in other ways.

The company stated in court filings that since 2024 it has worked with defense contractors such as Palantir Technologies.

Those partnerships have focused on tasks including:

• Rapid analysis of complex datasets

• Identifying emerging patterns and trends

• Accelerating document review processes

• Helping officials make decisions during time-sensitive operations

Anthropic argues that these uses align with its mission of responsible AI development.

But the broader conflict between Silicon Valley and Washington appears far from resolved.

Like a chess match unfolding across courtrooms and defense corridors, the Pentagon-Anthropic AI dispute could shape not only the future of one company — but also the rules governing how artificial intelligence is deployed in warfare and national security.