ChatGPT Work and Codex are the same app. On July 9, 2026, OpenAI merged the Codex app into a new ChatGPT desktop app. Work and Codex are now two modes inside that one app. They share the same sidebar, the same projects, the same plugins, the same usage meter, and the same agent underneath.
If you have been asking "is it Codex or ChatGPT Work?", you are in good company. I recorded a full tutorial the week it launched and caught myself stumbling over the names on camera at least five times. These names are driving everyone crazy. It just needs to be one name. Until OpenAI settles it, here is the truth you can operate on.
What Actually Happened on July 9
OpenAI had two desktop apps. The ChatGPT app, where a billion people asked questions, built GPTs, and organized chats into projects. And Codex, the agent app, where about five million people a week told an agent to actually go do work: build the website, clean the Drive, send the invoice.
On July 9 they fused them. The Codex app updated in place and became the new ChatGPT app. The old ChatGPT desktop app was renamed ChatGPT Classic. And the agent got a friendlier front door called Work.
| Before July 9 | After July 9 |
|---|---|
| ChatGPT desktop app (chat, GPTs, projects) | Renamed ChatGPT Classic, still works |
| Codex app (the agent) | Became the new ChatGPT app, kept everything you built |
| Two separate apps, two audiences | One app with three modes: Chat, Work, Codex |
So when people say "Codex was renamed ChatGPT Work," they are close enough for practical purposes. The agent you may have heard developers rave about is the same agent now sitting in front of every ChatGPT user.
The One Difference That Actually Exists
Switch between Work and Codex in the app and watch the sidebar. Nothing changes. Your projects stay, your plugins stay, your usage meter stays. I flip between them in the video above so you can see it with your own eyes.
What changes is the greeting and the starter cards:
| Work mode | Codex mode |
|---|---|
| "What should we get done?" | "What should we work on in [project]?" |
| Create a file or build a site | Explore and understand code |
| Research and plan next steps | Build a new feature, app, or tool |
| Get a briefing on recent work | Review code and suggest changes |
| Automate routine and recurring work | Fix issues and failures |
Same agent, two doors. Work speaks outcomes, Codex speaks code. As a business owner, live in Work mode. If you land in Codex mode by accident, nothing breaks; the starter cards just assume you are a developer.
People complained about this on launch day, and fairly: two labels for one thing invites exactly the confusion you felt before finding this page. My bet is the Codex name gradually recedes into a developer setting. Until then, treat the words as interchangeable and get back to work.
Why the Merge Matters More Than the Name
The naming is trivia. The distribution is the story.
Codex had roughly five million weekly users. ChatGPT has close to a billion. Every one of them now has the agent one click away, which means some of your competitors are about to get their first taste of an agent taking work all the way to the finish line. It only takes a few of them running with it.
If you were already using agentic tools like Codex or Claude Code, good for you. Now go pedal to the metal, because the head start you had just started shrinking. If you were waiting for a sign, a billion people getting an agent in the same week is the sign. Start with the full ChatGPT Work guide or go straight to the setup tutorial.
Common Questions
Is ChatGPT Work the same as Codex? Yes. It is one app with one AI agent inside it, and Work and Codex are just two doors into that same agent. Switch between them and nothing about your projects, your settings, or your connected tools changes. The only difference you will notice is the greeting: Work suggests business tasks, Codex suggests coding tasks.
Did I lose my Codex projects in the merge? No. If you had the Codex app, it simply updated itself into the new ChatGPT app, the way your phone apps update overnight. Everything you had built stayed put: your projects, your settings, the tools you had connected, and any automations you had scheduled. If you saw a message saying "Codex is now the ChatGPT app," the update already happened and nothing was lost.
Do Work and Codex share usage credits? Yes. Your plan comes with a usage allowance that works like a phone data plan: every task the agent does uses some of it, whether you started that task from Work or from Codex. It is one tank of gas shared by both doors. The allowance is tracked over two clocks at once, a short five-hour one and a weekly one, and both refill on their own. The pricing guide breaks down how to stretch it.
Which mode should I use? Work. When you open it, the suggestions are business jobs: create a file or build a site, research and plan, get a briefing, automate recurring work. Codex opens with programmer jobs like reviewing code. Since it is the same agent underneath, picking the "wrong" one breaks nothing; you would just be looking at suggestions written for a developer.
Where did my old ChatGPT go? It still exists. OpenAI renamed the old desktop app ChatGPT Classic, and it works exactly like before, voice conversations and your custom GPTs included. The new app also has a Chat mode that covers everyday questions and answers. A reasonable setup for now is both icons side by side: Classic for voice and your GPTs, the new app for real work.
Bottom Line
Two names, one agent. Stop worrying about what to call it and start deciding what to hand it.