Comparison
Cursor vs OpenAI Codex
Cursor: The most popular code editor with AI built in. OpenAI Codex: OpenAI's coding agent, included with ChatGPT.
| Cursor | OpenAI Codex | |
|---|---|---|
| Rating | 4.6 | 4.5 |
| Price | Freemium Pro from $20/month. Free plan (Hobby) with limits. | Freemium Limited use on the free ChatGPT plan. Go $8/month, Plus $20/month, Pro $100-200/month, Business $25/user/month. Since April 2026 it bills against token credits. |
| Free plan | ||
| API available | ||
| Open source | ||
| In Spanish | ||
| No watermark | — | — |
| Platforms | Windows · Mac · Linux | Web · Windows · Mac · Linux · iOS |
Cursor or OpenAI Codex?
Cursor is where you write; Codex is who you delegate to. Cursor gives you autocomplete and chat with project context inside the editor. Codex works by task from the terminal or the cloud, can tackle several in parallel, and is included in the ChatGPT subscription, which makes it good value if you already pay for it.
Choose Cursor if…
You write code daily and want the AI alongside you inside the editor.
Choose OpenAI Codex if…
You prefer delegating complete tasks and already pay for ChatGPT, so you add no extra subscription.
Cursor
- Very polished AI experience built into the editor
- Compatible with VS Code extensions
- Agent mode for complete tasks
- The free plan runs out quickly
- Fairly resource-hungry
OpenAI Codex
- Included in the ChatGPT subscription you already pay for
- Its CLI is open source and accepts your own API key
- Works in the cloud on several tasks at once
- Since April 2026 it bills against token credits: hard to predict
- Real heavy usage runs to $100-200 a month per developer
The differences that actually matter
Coding with company or delegating the task
Cursor assists while you do the typing. Codex is designed to take a task and hand it back solved, often running it in an isolated environment. The question is not which is better but whether your day is spent writing code or handing out work.
Where the code runs
Cursor works on your machine and your environment, with your services running. A cloud agent needs the project to be buildable there, which is trivial in some projects and impossible in others. Check it with yours before basing a workflow on it.
Which subscription includes it
Codex comes with ChatGPT's paid plans, so if you already pay for one you have it at no extra cost. Cursor is a separate subscription. For many people that is the real economic comparison, more than either one's list price.
Frequently asked questions
Do they complement each other?
Quite well: the editor for detailed work and the agent for tasks you can describe and leave running. The cost of having both is the argument against, especially since they overlap on generating code from an instruction.
Which understands an existing project better?
Cursor starts ahead because the project is open in front of it and indexed. A cloud agent has to clone and rebuild context on every task, which works well in projects with standard setup and worse in ones depending on your local environment.