Activists Chalk OpenAI and Anthropic Headquarters

Protesters chalked messages outside Anthropic and OpenAI headquarters in San Francisco on Friday, March 1, 2026, praising Anthropic and condemning OpenAI after a Pentagon standoff. The demonstrations followed Defense Secretary Pete Hegseth's ultimatum, Anthropic's refusal to loosen its use restrictions, and OpenAI CEO Sam Altman's announcement of a separate Pentagon agreement that omitted contract specifics. The protests highlight public scrutiny and reputational risk for AI firms winning defense deals.