OpenAI DevDay 2025

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It’s the best time in history to be a builder. This year, we introduced the next generation of tools and models to help developers code faster, build agents more reliably, and scale their apps in ChatGPT.

  • 4M

    developers have built with OpenAI

  • 800M+

    weekly ChatGPT users

  • 6B

    tokens per minute on the API platform

Product announcements

Apps in ChatGPT

Chat with apps directly in ChatGPT and build them with the Apps SDK in preview.

AgentKit

Build with our toolkit for production-grade agents.

Sora 2 in the API

Integrate video generation into your app with our latest Sora model.

Codex 

Check out new features like a Slack integration, Codex SDK, and enterprise controls in Codex—now generally available.

Sessions at OpenAI DevDay