OpenAI Codex pricing (2026)
Last updated
Short answer: Included in ChatGPT: Free $0, Go $8/mo, Plus $20/mo, Pro $100/$200/$500/mo (Ultrafast on Pro $500); Business $20/user/mo annual ($25 monthly, 2+ users). GPT-5.5 retired from Codex Oct 14, 2026 (API key sessions unaffected).
Source: https://developers.openai.com/codex/pricing, checked 2026-10-15. We copy prices from the vendor's page and don't estimate them. If something's changed, tell us.
OpenAI's coding agent: CLI, IDE extension, cloud tasks and desktop app.
Where OpenAI Codex ranks
| Use case | Rank | |
|---|---|---|
| Best terminal / CLI coding agent | #2 of 6 | Runner-up |
| Best autonomous agent to hand off tickets | #3 of 4 |
Scores are preliminary and based on public info. Affiliate status never affects them.
How the price compares
| Tool | Pricing (vendor page) | Checked |
|---|---|---|
| OpenAI Codex | Included in ChatGPT: Free $0, Go $8/mo, Plus $20/mo, Pro $100/$200/$500/mo (Ultrafast on Pro $500); Business $20/user/mo annual ($25 monthly, 2+ users). GPT-5.5 retired from Codex Oct 14, 2026 (API key sessions unaffected). | 2026-10-15 |
| Claude Code | Included in Claude Pro $20/mo ($17/mo annual); Max from $100/mo (5x or 20x Pro usage; Max includes $100–$200/mo API credits); Team/Enterprise available. Claude Code on all paid plans; shared usage with chat. | 2026-10-15 |
| Amp (Sourcegraph) | Hobby free (BYOK, pay-as-you-go orbs); Individual from $20/mo (higher tiers listed); Teams no extra charge. | 2026-10-14 |
| Gemini CLI | Open source. Free with Google login: 1,000 requests/user/day; free Gemini API key: 250/day; Google AI Pro 1,500/day, Ultra 2,000/day; pay-as-you-go via API/Vertex. | 2026-10-14 |
| OpenCode | Free and open source, any provider. Optional OpenCode Zen pay-as-you-go balance (starts at $20). | 2026-10-14 |
| Aider | Free and open source (Apache 2.0); bring your own model API key or local model. | 2026-10-14 |
| GitHub Copilot | Free (limited: 2,000 completions and 50 chat requests); Pro $10/mo ($15 in AI credits: $10 base + $5 flex); Pro+ $39/mo ($70 in credits); Max $100/mo ($200 in credits); Business $19/user/mo (1,900 credits); Enterprise $39/user/mo (3,900 credits). 1 AI credit = $0.01; completions unlimited on paid plans. Gemini 4 Argon (Oct 13, 2026) on Pro+/Max/Business/Enterprise at provider list price, not Pro. | 2026-10-15 |
FAQ
How much does OpenAI Codex cost?
Included in ChatGPT: Free $0, Go $8/mo, Plus $20/mo, Pro $100/$200/$500/mo (Ultrafast on Pro $500); Business $20/user/mo annual ($25 monthly, 2+ users). GPT-5.5 retired from Codex Oct 14, 2026 (API key sessions unaffected). (checked against https://developers.openai.com/codex/pricing on 2026-10-15).
Is the price on this page current?
It was last checked on 2026-10-15. AI coding plans change often, so confirm on the vendor's pricing page before you pay.
Next steps
- Codex Plus, Claude Pro, Cursor Premium or Google AI Pro: which AI coding subscription is the best value?
- OpenAI Codex review and rankings
- OpenAI Codex alternatives
- AI Coding Cost Cheat Sheet (free PDF) what $0, $20 and $100+ a month gets you
- Tool picker 3 questions, free
Free: the AI Coding Cost Cheat Sheet (PDF)
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