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OpenAI Codex
Pricing checked
OpenAI's coding agent for exploring code, building features, reviewing changes and fixing bugs, in ChatGPT, a CLI, an IDE extension and the cloud.
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- Category
- Coding
- Made by
- OpenAI
- Pricing
- Included in ChatGPT plans, including Free; paid plans from $8/month (Go)From the official pricing page, checked September 25, 2026. Prices can change.
- Available on
- CLIIDEWebiOSWindowsLinux
- Website
- openai.com ↗
Overview
Codex is OpenAI's coding agent, offered as part of ChatGPT. It helps explore and understand code, build features, review changes and fix issues. It is available in the ChatGPT desktop, mobile and web apps, as a command-line tool, as an IDE extension and as a cloud service. Use is included in ChatGPT plans, and it can also be used with an API key billed at API rates.
Checked October 19, 2026 from learn.chatgpt.com, learn.chatgpt.com. Something off? Tell us.
Key features
- Explores and explains existing code
- Builds features and fixes bugs
- Code review and suggested changes
- Local, git worktree and cloud environments
- Codex SDK, GitHub Action and non-interactive mode
Pros
- Included in ChatGPT plans, including Free with light use
- Available in CLI, IDE extension, app and cloud
- Sandboxing and approval controls
Cons
- Free and Go plans cover lightweight tasks only
- Usage limits apply and are shared with ChatGPT
- API key use does not include cloud features
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OpenAI Codex FAQ
Quick answers, plain wordsIs Codex free?
Light Codex use is included in the Free and Go ($8 per month) ChatGPT plans. Plus costs $20 per month and Pro starts at $100 per month.
Where can I use Codex?
You can use it in the ChatGPT desktop, mobile and web apps, the Codex CLI, the IDE extension and Codex Cloud.
Who makes Codex?
Codex is made by OpenAI.
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