OpenAI Codex pricing & plans
OpenAI Codex offers 7 fixed-price plans we track. Each is scored by Value× — the API-equivalent compute it unlocks per dollar — so you can see which OpenAI Codex plan stretches your budget furthest.
Key facts
- OpenAI Codex's paid plans run from Go at $8/mo to Pro 500 at $500/mo (as of October 6, 2026).
- Best value: Plus at $20/mo unlocks an estimated $110/mo of API-equivalent usage — a Value× of 5.5×.
- OpenAI Codex has a free plan (Free — Explore Codex on quick tasks).
- OpenAI Codex plans include access to GPT-5.6 Luna, GPT-6 Luna, GPT-5.6 Sol.
| Plan | Price/mo | Est. value/mo | Value× | |
|---|---|---|---|---|
| Plus | $20 | $110 | 5.5× | See plan → |
| Pro 200 | $200 | $1.1k | 5.5× | See plan → |
| Pro 500best value | $500 | $2.8k | 5.5× | See plan → |
| Pro 100 | $100 | $520 | 5.2× | See plan → |
| Go | $8 | $40 | 5.0× | See plan → |
| Business | $25 | $110 | 4.4× | See plan → |
| Free | Free | $0 | — | See plan → |
About OpenAI Codex pricing
Codex is included in every ChatGPT tier; 'ChatGPT Work and Codex share usage' (docs live at learn.chatgpt.com / developers.openai.com/codex). Prices re-verified 2026-10-06 on chatgpt.com/pricing + developers.openai.com/codex/pricing + help.openai.com Pro-tiers article (updated ~Oct 3): Free $0 ('Unlimited text chats with GPT-5.6 Luna', limited Codex), Go $8/mo ('This plan may include ads'), Plus $20/mo, Pro From $100 — 3 tiers (Pro 100 $100 / Pro 200 $200 / Pro 500 $500; Astra Ultrafast only on Pro 500), Business $20/user/mo annual (2+ users) / $25 monthly (CTA chatgpt.com/team-sign-up). 'Pro plans currently have no five-hour limit' — allowance-based with weekly caps; 5h local-message estimates now published only for Plus and Standard Business: GPT-6 Astra 5-45, GPT-6.1 Sol 15-160, GPT-6 Sol 15-150, GPT-6 Luna 350-3,000. Pro 200 is again open to new subscriptions but with a LOWER included allowance (grandfathering: active any time Sep 22, 2026 through 10am PT Sep 29, 2026 keeps the previous allowance through Oct 29, 2026, then moves to the lower allowance at the same $200). Model lineup: GPT-6 Astra (flagship), GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna + GPT-5.6 family; GPT-5.4/5.4-mini retired Aug 31 2026, GPT-5.3-Codex-Spark retired Sep 14 2026, GPT-5.5 retires from ChatGPT/Work/Codex on all plans Oct 14 2026 (API unaffected). Credit rate card (credits per 1M in/cached/out): GPT-6 Astra 250/25/1250; GPT-6.1 Sol 50/2.5/250; GPT-6 Sol 50/5/250; GPT-6 Luna 2.5/0.25/12.5; GPT-5.6 Sol 100/10/500; GPT-5.5 125/12.5/750; new entries Daybreak Blue 100/10/500 and Daybreak Red 312.5/31.25/1875 (Trusted Access for Cyber required) and GPT-Rosalind-Research 125/12.5/625. Fast mode burns included usage at 2.5x, Astra Ultrafast at 8x (6x on purchased credits). In-product referral program ('Invite a friend' on personal plans / 'Invite a coworker' in Business) documented on the Codex pricing page.
Frequently asked questions
How much does OpenAI Codex cost per month?
As of October 6, 2026, OpenAI Codex's cheapest paid plan is Go at $8/mo, with 6 more plans above it.
What is the best-value OpenAI Codex plan?
Plus at $20/mo delivers the most value per dollar: an estimated $110/mo of API-equivalent usage, a Value× of 5.5× (as of October 6, 2026).
Does OpenAI Codex have a free plan?
Yes — OpenAI Codex's Free plan is free, though usage is limited compared to paid plans (as of October 6, 2026).
Which models are included in OpenAI Codex plans?
OpenAI Codex plans include access to GPT-5.6 Luna, GPT-6 Luna, GPT-5.6 Sol, GPT-5.6 Terra, among others (as of October 6, 2026).
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