OpenAI DevDay 2026 Set for September 29 With Altman Keynote and 20+ Launches

OpenAI will hold DevDay 2026 in San Francisco on September 29, with CEO Sam Altman delivering a live keynote at 1PM ET. The company teased "20+ launches," while Altman said "we have found a new thing." The annual developer conference includes technical sessions, hands-on demos, and workshops.