The US Department of Defense says it used xAI’s “Grok Gov Model” during the US-Israel war on Iran, according to a sworn declaration by Pentagon digital and artificial intelligence chief Cameron Stanley filed in federal court. Stanley states that the military deployed “Maven Smart Systems (MSS) workflows” that supported targeting and other operational functions, and that these systems enabled US forces to deploy over 2,000 munitions to 2,000 distinct targets within 96 hours during Operation Epic Fury. The filings, reported by multiple outlets, do not provide specific deployment dates in relation to key early-war events.

The admission is tied to an environmental lawsuit in Mississippi in which the NAACP sued xAI and its subsidiary MZX Tech over allegations that they operate natural gas or methane turbines without required permits or pollution controls at the Colossus 2 data center. The US Department of Justice urges dismissal of the suit, arguing that stopping xAI’s power supply would harm national security and AI innovation needed for military operations. The coverage also notes that the Pentagon previously used Anthropic’s Claude in the same broader targeting/AI program Maven, and moved to other AI providers, including xAI, after contract termination and disputes over permissible uses.