app.md Codex Docs, 2026-02-21 00:33 UTC → 2026-03-08 18:10 UTC

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5ChatGPT Plus, Pro, Business, Edu, and Enterprise plans include Codex. Learn more about [what's included](https://developers.openai.com/codex/pricing).5ChatGPT Plus, Pro, Business, Edu, and Enterprise plans include Codex. Learn more about [what's included](https://developers.openai.com/codex/pricing).

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7![Codex app for Windows showing a project sidebar, active thread, and review pane](/images/codex/windows/codex-windows-light.webp)

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7![Codex app window with a project sidebar, active thread, and review pane](/images/codex/app/app-screenshot-light.webp)9![Codex app window with a project sidebar, active thread, and review pane](/images/codex/app/app-screenshot-light.webp)

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9## Getting started11## Getting started

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131. Download and install the Codex app151. Download and install the Codex app

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15 The Codex app is currently only available for macOS.17 Download the Codex app for Windows or macOS.

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17 [Download for macOS](https://persistent.oaistatic.com/codex-app-prod/Codex.dmg)19 [Download for macOS](https://persistent.oaistatic.com/codex-app-prod/Codex.dmg)

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19 [Get notified for Windows and Linux](https://openai.com/form/codex-app/)21 [Get notified for Linux](https://openai.com/form/codex-app/)

202. Open Codex and sign in222. Open Codex and sign in

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22 Once you downloaded and installed the Codex app, open it and sign in with your ChatGPT account or an OpenAI API key.24 Once you downloaded and installed the Codex app, open it and sign in with your ChatGPT account or an OpenAI API key.