OpenAI
OpenAI DevDayKeynotes year over year
1
Keynotes
5
Announced
20%
GA at launch
Announcements per year
20255
GAPreviewComingAnnounced
What changed year over year
2025
- DevDay 2025 was held October 6, 2025 at Fort Mason in San Francisco.
- The Apps SDK launched in preview, letting developers build apps that run inside ChatGPT.
- AgentKit was introduced as a complete toolkit: Agent Builder, Connector Registry and ChatKit.
- Codex was cited alongside image generation and Sora as part of OpenAI's product lineup.
- Codex is now generally available with a Slack integration and a new Codex SDK.
- Apps SDKPreview
- Apps in ChatGPTAnnounced
- AgentKitAnnounced
- CodexGA
- Codex SDKAnnounced
Keynotes
Companies on stage
HubSpot
Figma
Spotify
Zillow
Booking.com
Canva
Coursera
Expedia
Ramp
LY CorporationSummaries of official keynote videos and recaps; watch the source for exact wording. Logos via logo.dev; trademarks belong to their owners.