OpenAI GPT-5 Codex
OpenAI
One agent for everywhere you OpenAI GPT-5 Codex Codex is included in ChatGPT Plus, Pro, Business, Edu, and Enterprise plans
Your New Software Engineering Teammate
Pair with OpenAI GPT-5 Codex in your terminal or IDE. Starting from a prompt or spec, OpenAI GPT-5 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 OpenAI GPT-5 Codex CLI and IDE extension—available in VSCode, Cursor, and Windsurf.
GPT 5 Codex Powerful Features
Delegate to GPT 5 Codex in the Cloud
GPT 5 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.
Accelerate Code Review with GPT 5 Codex
Set up automatic code reviews with GPT 5 Codex to land PRs with confidence, and tag @codex to start tasks in GPT 5 Codex cloud—all directly from GitHub. GPT 5 Codex plugs into your workflows, running proactively so your team can stay focused on shipping what matters.
Code on Your Phone with GPT 5 Codex
Kick off tasks from the ChatGPT mobile app, wherever inspiration strikes. Track progress, review PRs, and merge changes to continue building on the go with GPT 5 Codex.
Get Started with GPT 5 Codex
Choose the GPT 5 Codex approach that best fits your workflow
GPT 5 Codex Cloud
Run GPT 5 Codex in the cloud with powerful computing resources and isolated environments
Access GPT 5 Codex CloudGPT 5 Codex CLI
Use GPT 5 Codex in your terminal for convenient command-line programming
Download GPT 5 Codex CLIGPT 5 Codex IDE Extension
Use GPT 5 Codex directly in VSCode, Cursor, and Windsurf
Install GPT 5 Codex ExtensionGPT 5 Codex FAQ
How do I access GPT 5 Codex through ChatGPT?
GPT 5 Codex CLI, IDE extension, and GPT 5 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 GPT 5 Codex for their workspace here.
What's the difference between GPT 5 Codex CLI, IDE extension, and GPT 5 Codex cloud?
GPT 5 Codex is a single agent that runs everywhere you code—terminal, IDE, in the cloud, in GitHub, and on your phone. With your ChatGPT account, you can easily move work between your local environment and GPT 5 Codex's cloud sandbox without losing state.
How much does GPT 5 Codex cost?
GPT 5 Codex is part of ChatGPT Plus, Pro, Business, Edu, and Enterprise plans. Business and Enterprise plans can purchase credits for additional usage. Learn more about usage for each plan here.
Which models can I use with GPT 5 Codex?
With the GPT 5 Codex CLI and IDE extension we recommend using GPT-5, which is the default model. You can choose the reasoning level. You can also authenticate via API key to use our older models.
Ready to Get Started with OpenAI GPT-5 Codex?
OpenAI GPT-5 Codex is included in ChatGPT Plus, Pro, Business, Edu, and Enterprise. Get the most out of OpenAI GPT-5 Codex with these guides.