OpenAI Codex

Rank 06 in AI coding agents & IDEs · Last updated 2026-10-14

OpenAI's coding agent across app, CLI, IDE extension and cloud; bundled into every ChatGPT plan.

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 program: none found. Affiliate status does not affect rank.

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