OpenAI's open-source coding agent that runs locally in your terminal.
Visit Codex CLI ↗ Suggest an edit
Official video: “Meet the New Codex CLI” — OpenAI (official)
Open-source (Apache-2.0) coding agent from OpenAI that runs on your machine. Sign in with ChatGPT or use an API key; also available as IDE extension, desktop app and cloud agent. source
| Free tier | Included with ChatGPT Free and Go, with plan-dependent limits source |
| Paid from | ChatGPT Plus ($20/month) for higher limits; or pay API rates source |
| Latest version | TBD (see GitHub Releases) source |
Last checked: 2026-10-17