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OpenAI Codex pricing: ChatGPT plans vs API billing

Codex, OpenAI’s coding agent, has no separate subscription. It’s included in ChatGPT Free, Go, Plus, Pro, Business and Enterprise, and how much you can use it depends on the plan. Free is $0, Go $8 a month and Plus $20. Pro starts at $100, with a $200 tier. Business Standard is $25 per seat, or $20 billed annually. Enterprise is contact sales. You can buy credits beyond plan usage; Codex API per-token pricing: price not verified.

Last checked (Re-check due)Sources: learn.chatgpt.com ↗, chatgpt.com ↗, help.openai.com ↗
Free$0/moCodex included
Plus$20/moExpanded Codex usage
ProFrom $100/moLonger Codex sessions
Business Standard$25/seat$20/seat/mo annual

All OpenAI Codex plans

Per-seat prices in USD from the official pricing pages. “Annual billing” is the per-month price when billed annually, as the vendor states it; the yearly total is shown where published.

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OpenAI Codex plans and prices (USD, excl. tax)
PlanMonthly billingAnnual billingSeatsUsage (as published)
Freeindividual
$0
Billed monthly only1
  • Text chats: Unlimited*
  • Instant context window: 27K tokens
GoindividualMay include ads. Billed monthly only.
$8
Billed monthly only1
  • Instant context window: 54K tokens
  • Reasoning context window: 256K tokens
Plusindividual
$20
Billed monthly only1
  • Message caps: May apply, vary with system conditions
  • Instant context window: 54K tokens
  • Reasoning context window: 256K tokens
Pro 100individualBilled monthly only; annual billing and multi-month prepayment aren't offered.
$100
Billed monthly only1
  • Instant context window: 128K tokens
  • Reasoning context window: 400K tokens
  • Included usage: Base Pro allowance
Pro 200individualBilled monthly only. New subscriptions get a lower usage allowance than older ones, whose allowance is kept until 29 October 2026.
$200
Billed monthly only1
  • Instant context window: 128K tokens
  • Reasoning context window: 400K tokens
  • Included usage: More than Pro 100
Pro 500individualBilled monthly only; annual billing and multi-month prepayment aren't offered.
$500
Billed monthly only1
  • Instant context window: 128K tokens
  • Reasoning context window: 400K tokens
  • Included usage: Highest; includes Ultrafast
Business (Standard seat)teamFor teams of 2 to 200 people; Standard and Premium seats count together. Formerly called ChatGPT Team.
$25
$20 /mo
2–200
  • Baseline access; workspace credits for usage beyond included limits.
  • Team size: 2–200 employees
Business (Premium seat)teamFor teams of 2 to 200 people; Standard and Premium seats count together. Formerly called ChatGPT Team.
$125
$100 /mo
2–200
  • 5x more usage than Standard seats, no 5-hour usage limit.
  • Team size: 2–200 employees
Edu / ChatGPT for Teachersenterprise
Contact sales
——
    Enterpriseenterpriseannual only
    Contact sales
    		—

      Source

      chatgpt.com/codex/pricing and chatgpt.com/pricing, checked in a browser 2026-11-05 (Asia/Colombo). ChatGPT’s team product is now called Business (Standard and Premium seats). Tax isn’t stated, so prices are shown excluding tax.

      Sources: ChatGPT pricing

      Every ChatGPT plan in one table: ChatGPT pricing.

      Sources: learn.chatgpt.com/docs/pricing, chatgpt.com/pricing, help.openai.com/en/articles/20001493-chatgpt-back-to-school-offer-for-students, help.openai.com/en/articles/6950777-what-is-chatgpt-plus, help.openai.com/en/articles/9793128-about-chatgpt-pro-tiers, chatgpt.com/pricing/, help.openai.com/en/articles/8792828-chatgpt-business-overview.

      OpenAI Codex cost calculator

      Codex has no separate price: it comes with ChatGPT plans. Pick the plans and seats you need.

      Billing
      Plans that only offer one billing period use it automatically.
      Seats per plan

      Individual plans

      $8 per user/mo, billed monthly only
      $20 per user/mo, billed monthly only
      $100 per user/mo, billed monthly onlyThe Codex page shows Pro “From $100”; its FAQ names the $100 and $200 tiers. The $500 Pro tier is on the main ChatGPT pricing page, but its Codex mapping isn’t clear.
      $200 per user/mo, billed monthly only

      Business

      $25 per user/mo, billed monthly · $20 per user/mo, billed annually
      $125 per user/mo, billed monthly · $100 per user/mo, billed annually

      Estimated cost

      Per year$240
      Per month (average)$20
      1 × ChatGPT Plus$240ChatGPT · Billed monthly only · $20 per user/mo

      USD, excluding tax, from the vendors’ official pricing pages (data as of Nov 14, 2026). Annual billing uses the published yearly price where there is one. Promotional prices are excluded unless ticked. Usage-based charges are not included unless listed above.

      How OpenAI Codex pricing works

      Can I use Codex for free?

      Yes, Codex is included in ChatGPT Free, with lower usage limits than paid plans.

      Plus vs Pro for coding

      Plus ($20) gives expanded Codex usage and is enough for regular coding help. Pro (from $100) is for long, agentic Codex sessions. If you keep hitting Plus limits, extra credits may cost less than moving to Pro.

      Business

      Business seats cost $25 a month ($20 billed annually) for Standard and $125 ($100 annually) for Premium, with Codex included.

      API usage

      Using Codex with an API key is billed by usage, but the ChatGPT pages only link to usage-based pricing, so we don’t quote per-token rates.

      Codex is included in ChatGPT

      OpenAI’s Codex pricing page lists Codex in every ChatGPT plan. Enterprise is sold through sales. API-key usage is billed per token; those rates are not on the Codex page (price not verified).

      All ChatGPT plans and prices →

      Related

      OpenAI Codex pricing FAQ

      How much does OpenAI Codex cost?
      No separate price; it’s in ChatGPT plans from Free ($0) to Pro (from $100) and Business.
      Is Codex free?
      Yes, on ChatGPT Free, with lower limits.
      Which plan gives the most Codex usage?
      Pro, which supports longer Codex sessions.
      What does Codex cost on the API?
      Price not verified.
      Is ChatGPT Team still available?
      It’s now called Business: Standard $25/seat ($20 annual), Premium $125/seat ($100 annual).
      Can I use leftover Sora credits?
      OpenAI says purchased ChatGPT/Sora credits can be used for Codex.