Grok, developed by Elon Musk's xAI, replaced Anthropic's Claude in Project Maven and facilitated over 2,000 munitions strikes against Iran in 96 hours during Operation Epic Fury. The Pentagon confirmed this shift in a legal brief following a contract dispute with Anthropic.

The US government has deployed Elon Musk's AI chatbot Grok as a nutrition bot on the newly launched website RealFood.gov, which promotes protein-centric dietary guidelines. Grok has faced criticism for providing inappropriate advice, including suggestions for rectal use of vegetables.