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OpenAI rallies developers ahead of September 29 DevDay 2026 keynote

September 27, 2026 at 15:07 EDT

Software Dev & Coding
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OpenAI has kicked off a developer roll call ahead of DevDay 2026, asking builders where they are joining from and what they are building as its annual developer event approaches. The event is scheduled for September 29, 2026, at Fort Mason in San Francisco, with a livestreamed opening keynote at 10:00 a.m. PT featuring Sam Altman.

September 29, 2026 · OpenAI

DevDay 2026 moves into countdown mode

OpenAI is rallying builders before its San Francisco developer event, with a 10:00 a.m. PT keynote, closed in-person applications and a free livestream for remote viewers.

Sep 29

San Francisco event date

10:00

Opening keynote time, PT

$650

Registration fee for invited attendees

DevDay Exchange cities

From one hub to eight city exchanges

The San Francisco event is paired with a global Exchange program across eight cities.

San Francisco

Exchange cities

What the program actually confirms

Technical sessionsHands-on demosLivestreamed keynoteNo product announced in the roll call

Why builders care

Past DevDay events introduced developer tools for apps, agents, models and Codex workflows.

What remains limited

In-person applications are closed, tickets are non-transferable, and the roll call does not reveal what will be announced.

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