OpenAI held DevDay 2026, its largest event yet, featuring more than 20 major announcements across ChatGPT, Codex, and its models. The company introduced agents capable of taking on ongoing responsibilities and new collaborative workflows between humans and AI.
- OpenAI is opening up ChatGPT as a shared surface for human-agent collaboration.
- Developers can directly launch native experiences to the platform's 1.2B weekly users.
- The event covered updates to Codex and underlying models alongside new forms of working with AI.
The announcements aim to provide more ways for people to take on ambitious work and build future tools, supporting a renaissance of creativity and discovery.