OpenAI Codex
Rank 06 in AI coding agents & IDEs · Last updated
OpenAI's coding agent across app, CLI, IDE extension and cloud; bundled into every ChatGPT plan.
Numptr says8/10
Already paying for ChatGPT? You've basically got it. Crack on.
Bundled into every ChatGPT plan, even Free with limits.
- Best for
- ChatGPT subscribers who want a cloud + local coding agent
- Free tier
- Included in ChatGPT Free (limited usage)
- Pricing
- Included in ChatGPT Go $8/mo, Plus $20/mo, Pro $100/mo; Business $25/seat/mo ($20 annual); or pay API rates with an API key
- Pricing source
- https://chatgpt.com/codex/pricing/ (checked 2026-10-14)
- Official site
- https://chatgpt.com/codex/
- Affiliate / referral programme
- none found. Affiliate status does not affect rank.
Alternatives in AI coding agents & IDEs
- #1 Claude Code
- #2 Cursor
- #3 GitHub Copilot
- #4 Devin Desktop (formerly Windsurf)
- #5 Cline
- #7 Google Antigravity
- #8 Kiro
- #9 Grok Build
- #10 JetBrains Air
See how the rest of the coding agents stack up →
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