Summary
At OpenAI DevDay 2026, Dominik from the developer experience team shows how Codex is moving beyond the laptop. With roughly 300 features shipped in the past year, the session focuses on practical ways to fold them into everyday workflows, and on running Codex in any interface and in any location.
The headline announcements are Codex Cloud and the arrival of ChatGPT in Slack and Microsoft Teams, all powered by the same agent and the same plugins already installed on a user’s account. In the desktop app, tasks can now run locally, on a remote machine, or in the cloud using shared team environments. When a new environment is created, Codex scans the repositories and dependencies, then writes a setup script and a startup skill that teaches the agent how to use the project. The demo covers filesystem snapshots for faster task starts, a Figma plugin used to implement a shader effect, private network access through Tailscale, environment variables and secrets, and sharing environments with a team.
The talk also walks through collaborating with Codex in a Slack thread to investigate a bug and prepare a pull request. It closes with the redesigned code review tab in the desktop app, built for developers who now spend more time reviewing agent-written code than writing it.
📺 Source: OpenAI · Published October 07, 2026
🏷️ Format: Keynote Launch
