Trump Administration Halts Government Use of Anthropic AI Amidst Security Concerns

President Donald Trump has directed all federal agencies to immediately cease using technology from Anthropic, an artificial intelligence developer, following a dispute over access to its AI tools. The move, announced on Friday, February 27, 2026, marks a significant escalation in the ongoing debate about the role of private-sector AI in national security.

Escalating Tensions with the Pentagon

The conflict began when Anthropic refused demands from the Department of Defense (DoD) for “any lawful use” of its AI technology, including its Claude models. Defense Secretary Pete Hegseth subsequently designated Anthropic a “supply chain risk,” a label typically reserved for foreign adversaries, effectively prohibiting DoD vendors and contractors from doing business with the company. BBC News and The Modern York Times reported on these developments.

Concerns Over AI Applications

Anthropic expressed concerns about the potential use of its AI tools for “mass surveillance” and “fully autonomous weapons.” The company stated it would “challenge any supply chain risk designation in court.” Despite these concerns, the DoD insisted on unrestricted access to Claude, arguing that limiting its use could “put our nation’s safety at risk.”

OpenAI Steps In

Following the fallout with Anthropic, OpenAI, led by CEO Sam Altman, announced a deal with the DoD to deploy its AI models within the department’s classified network. CNBC reported that Altman emphasized the DoD’s “deep respect for safety” in their partnership. The terms of OpenAI’s contract with the Pentagon have not been publicly disclosed.

White House and DoD Actions

Trump’s directive, delivered via his Truth Social platform, ordered all federal agencies to “IMMEDIATELY CEASE all use of Anthropic’s technology.” The General Services Administration has begun implementing the order, suspending Anthropic’s access through USAi, a platform providing chatbots to government workers, and removing the company from the primary federal procurement system. Politico detailed these actions.

A Shifting Landscape

This situation highlights a growing tension between the U.S. Government and the private AI sector. The government is increasingly reliant on private companies for AI innovation, yet seeks to maintain control over how these technologies are used. The dispute with Anthropic signals a potentially seismic shift in this relationship, raising questions about the future of AI development and deployment within the national security apparatus.