OpenAI has announced DevDay 2026, its annual developer conference, scheduled for September 29 in San Francisco. The one-day event brings developers into technical sessions with the teams building OpenAI's tools, with an opening keynote featuring CEO Sam Altman.
Registration and Access
In-person attendance applications closed in late July, with invited attendees given a 14-day window to complete their $650 registration before spots roll to a waitlist. The opening keynote will be livestreamed for those not attending in person, with signups available on the event page for reminder notifications.
The schedule runs on Pacific Time. Breakfast starts at 8 a.m., the opening keynote begins at 10 a.m., lunch is at 11:30 a.m., and breakout sessions run from 11:15 a.m. through 3:30 p.m. A closing session follows at 4 p.m., with a reception running from 4:45 to 7 p.m.
What the Day Includes
OpenAI describes the programming as technical sessions on APIs and tools, hands-on demos and workshops, and dedicated time to connect with other developers. The company has not yet published a detailed session list, noting that more information will follow in the weeks before the event.
Global Exchange Events
Alongside the San Francisco conference, OpenAI is running DevDay Exchange events in eight additional cities: Bengaluru, Tokyo, Seoul, Paris, Berlin, London, Sao Paulo, and Mexico City. These are smaller regional follow-ups to the main event, with separate applications for attendance. The company describes them as extensions of DevDay rather than standalone conferences.
The exchange events follow a pattern OpenAI established in previous years, bringing curated versions of the main DevDay content to international developer communities that cannot easily travel to San Francisco. Each city hosts its own application process and schedule.
What This Means for Developers
DevDay has historically been where OpenAI announces new API capabilities, model updates, and developer tooling. The 2026 event comes at a time when the API ecosystem has expanded significantly, with competitors offering similar developer platforms. The $650 registration fee and single-day format keep the event focused, though the livestreamed keynote ensures broader access to whatever announcements come out of it.
For developers unable to attend either the San Francisco event or a regional exchange, the livestreamed keynote and subsequent documentation releases remain the primary channels for new information. The breakout sessions and workshops, which are typically where the more granular technical details emerge, are in-person only.