Stop AI
American activist organization
From Wikipedia, the free encyclopedia
Stop AI is an American activist organization formed in 2024. Based in Oakland, California,[1] it seeks to ban the development of artificial general intelligence, a hypothetical technology being researched by some companies, including OpenAI.[2]
Some Stop AI members have been arrested for blocking doors to OpenAI offices as protest.[3][4] In November of 2025, the San Francisco Public Defender's Office delivered a subpoena to Sam Altman, as part of an ongoing trial of Stop AI members, while Altman appeared on stage at a public event.[5]
According to a Stop AI leader, in late 2025, Stop AI co-founder Sam Kirchner punched him due to disagreement about the organization; Kirchner was subsequently expelled from the group,[4] and disappeared days later.[6] OpenAI and local police were contacted following Kirchner's disappearance, due to fears of a potentially violent attack, causing the lockdown of San Francisco offices.[7] No attack on OpenAI offices materialized, and Sam Kirchner remains missing as of November 21, 2025.[4][8][9]
