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OpenAI

Codex

One agent for everywhere you code—included in ChatGPT Plus, Pro, Business, Edu, and Enterprise plans.

$ npm i -g @openai/codex
Graphic with a toggle switch labeled “Code review” on a blue gradient background, overlaid with faint lines of code in light green.

Your new software engineering teammate

Pair with Codex in your terminal or IDE

Starting from a prompt or spec, Codex navigates your repo to edit files, run commands, and execute tests. Ship new features, fix bugs, brainstorm solutions, or tackle whatever’s next with the Codex CLI and IDE extension—available in VSCode, Cursor, and Windsurf.

Interface showing a terminal window with OpenAI Codex, where a user has typed “Hey Codex, implement dark mode,” over a colorful background with faint code in light green.

Delegate to Codex in the cloud

Codex runs in the background so you can stay in flow and get more done. It runs each task in an isolated sandbox with your repo and environment, generating code you can review, merge, or pull down to your computer to keep working.

Code review interface showing file changes with lines added and removed, and a user response saying “Looks great, add tests!” on a gradient background with faint code.

Accelerate code review

Set up automatic code reviews with Codex to land PRs with confidence, and tag @codex to start tasks in Codex cloud—all directly from GitHub. Codex plugs into your workflows, running proactively so your team can stay focused on shipping what matters.

Code review interface showing changes to a Python file with lines added in green, reviewed by the chatgpt-codex-connector bot, against a colorful gradient background with faint code.

Code on your phone

Kick off tasks from the ChatGPT mobile app, wherever inspiration strikes. Track progress, review PRs, and merge changes to continue building on the go.

UI element showing test progress for “Support pasting images in composer” with a progress bar labeled “Running tests” and a timer reading 5:43, over a blue and purple gradient background with faint code.

Learn more

Codex is included in ChatGPT Plus, Pro, Business, Edu, and Enterprise. Get the most out of it with these guides.

UI element labeled “IDE” with a laptop icon, displayed on a blue and purple gradient background overlaid with faint programming code.
UI element labeled “Terminal” with a terminal icon, displayed on a blue and purple gradient background with faint lines of code in light green.
UI element labeled “Cloud” with a cloud icon, shown on a soft gradient background of blue and purple with faint code in the background.

FAQ

Codex CLI, IDE extension, and Codex web all allow you to sign in with ChatGPT if you have a Plus, Pro, Business, Edu, or Enterprise plan. Business and Enterprise admins can learn more about enabling Codex for their workspace here⁠(opens in a new window).

Try Codex

$ npm i -g @openai/codex