Codex
by OpenAI
If you already pay for ChatGPT, you already have a strong coding agent. Plus unlocks the terminal and IDE.
- Free plan
- Limited use in the ChatGPT desktop app
- Paid plans
- From $8/mo. ChatGPT Go, desktop app only. Plus ($20) adds the CLI, IDE and cloud.
- Best for
- ChatGPT subscribers who want a coding agent
- Prices checked
- Sep 30, 2026. Official pricing
Good
- Included with ChatGPT plans
- Plus adds the CLI, IDE extension, cloud tasks and code review
- Uses OpenAI's GPT-6 models (varies by plan)
Watch out
- Free and Go get the desktop app only
- Limits reset every 5 hours, with weekly caps
Where it ranks
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