Microsoft Backs Anthropic in Pentagon Dispute Over AI Access

Microsoft is supporting Anthropic in its legal battle against the Pentagon, challenging the Defense Department’s designation of the artificial intelligence company as a supply chain risk. This move comes as the Trump administration seeks to restrict Anthropic’s access to military contracts following a dispute over the unrestricted use of its AI model, Claude.

Pentagon Designates Anthropic as Supply Chain Risk

Last week, Defense Secretary Pete Hegseth designated Anthropic as a supply chain risk, effectively barring the company from working with the military. This action followed Anthropic’s refusal to allow unrestricted military use of its AI model, Claude. President Donald Trump subsequently ordered all federal agencies to cease using Claude. Source: AP News

Microsoft Challenges the Designation

Microsoft filed a legal challenge on Tuesday, arguing that the supply chain risk designation is a misuse of government authority and could have severe economic consequences. The company stated that the designation could disrupt the military’s use of advanced AI. Source: CNBC Microsoft is advocating for a temporary restraining order to prevent the Pentagon’s ban from taking immediate effect, allowing for a more orderly transition and minimizing disruption to ongoing military operations.

Support from Military Leaders and AI Developers

Beyond Microsoft, a group of 22 retired high-ranking U.S. Military officials, including former secretaries of the Air Force, Army, and Navy, have also filed a court document alleging that Hegseth’s actions are retaliatory. Support for Anthropic has come from AI developers at Google and OpenAI, as well as organizations like the Cato Institute and the Electronic Frontier Foundation. Source: AP News

Implementation of the Ban

An internal Pentagon memo, dated March 6, directs senior military leaders to remove Anthropic’s products from all systems within 180 days. The memo, signed by Defense Department Chief Information Officer Kirsten Davies, cites potential vulnerabilities that adversaries could exploit, posing “potential catastrophic risks to the warfighter.” The memo also requires other Pentagon contractors to cease using Anthropic products within the same timeframe. Source: CBS News

Unprecedented Action

The government’s action against Anthropic is considered unprecedented, marking the first time an American company has been designated a supply chain risk in this manner. Source: CBS News

Industry Response

Microsoft’s decision to publicly support Anthropic is notable, as many large companies tend to remain silent in disputes with the government. Source: The New York Times