Uploaded July 2026 | Updated September 2026, 2 weeks ago

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Here’s what’s new in Codex for developers. Thanks for helping us make it better!

We packed in a lot:
* GPT‑5.6
* Ultra
* New ways to manage parallel work
* Big updates to Computer Use
* Inline code and document edits
* PR reviews
* Sites
* ...and much more.

Make sure you watch until the end: something that isn’t out yet makes a cameo!

Chapters:
00:00 What's new for developers
00:46 GPT-5.6 Sol and Ultra mode
01:28 Computer Use and appshots
02:11 Browser Use and inline editing
03:17 Publishing with Sites
03:51 Coordinating work across projects
04:57 Codex on mobile
05:36 Pull request workflows
06:35 OpenAI Build Week