Codex Sites: Team Co-Editing and Custom URLs
CodexOpenAI added Site co-editing to Codex Sites, letting workspace owners invite teammates as editors who can update content, live data, and publish changes. The update also makes Site URLs editable after launch, so owners can change a Site's hosted address without a new deployment while old links automatically redirect. Together the changes turn Codex Sites from a single-owner tool into a genuine shared workspace.
Key Takeaways
- OpenAI introduced Site co-editing, letting workspace owners invite active members as editors who can update content, live database data, and publish changes.
- Owners retain exclusive control over audience settings, analytics, ownership transfer, and version history, even after granting edit access.
- Editable Site URLs now let owners change a Site's ChatGPT-hosted address without triggering a brand-new deployment.
- Old Site URLs automatically redirect to the new address, preventing broken links when a URL changes.
- The update turns Codex Sites from a solo publishing tool into a genuine team workspace, closing a gap that existed since Sites launched in June 2026.
- Coverage of the feature has so far been limited to release-tracking outlets, suggesting it shipped quietly alongside the more attention-grabbing Codex Harness announcement on the same day.
Sources & Mentions
3 external resources covering this update
Codex Sites Adds Team Co-Editing
On August 20, 2026, OpenAI updated Codex Sites — the feature that lets Codex turn a plain-language prompt into a hosted web app — with its first real multi-user collaboration model. Where Site collaboration is available, owners can now invite other active members of the same workspace as editors.
What Editors Can Do
Invited editors can read a Site's live database data, make updates to its content and functionality, save new versions, and publish changes once the owner has published the Site for the first time. Owners keep sole control over who gets edit access, along with audience settings, analytics, ownership transfer, and the ability to restore earlier versions if a change needs to be undone.
Editable Site URLs
Alongside co-editing, OpenAI also made Site URLs editable after the fact. Owners can now change an existing Site's ChatGPT-hosted address without triggering a brand-new deployment, and the previous URL automatically redirects to the new one — avoiding broken links for anyone who bookmarked or shared the old address.
Why It Matters
Codex Sites launched in June 2026 as a way to generate and host lightweight internal tools — dashboards, planners, review workspaces — directly from Codex, but it previously worked as a single-owner publishing tool. Co-editing brings it closer to how teams actually work, letting a Site evolve as a shared document rather than something only one person can touch.