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How much does OpenAI Codex cost per month?

OpenAI Codex pricing

OpenAI

OpenAI Codex published paid entry is $8/mo and lists a $0 plan (Limited Codex access on ChatGPT Free.). Checked Oct 15, 2026 on ChatGPT plans and pricing.

Official pricing Compare with Claude Code

Checked 19 Oct 2026

Plans

List prices from the vendor page. Taxes usually extra.

ChatGPT Free

$0 /month
  • Limited Codex access.

ChatGPT Go

$8 /month
  • US list price.
  • Localized in some markets.
  • Lightweight Codex usage.

ChatGPT Plus

$20 /month
  • Expanded Codex on web, CLI, IDE extension, and iOS.
  • Limited GPT-6 Astra.

ChatGPT Pro

$100 / $200 / $500 /month
  • Three Pro tiers.
  • Ultrafast is included on Pro $500.
  • GPT-6 Astra is included on $100 and $200 Pro plans.

API key

API list price /token
  • CLI, SDK, and IDE extension only.
  • No cloud review or Slack features.

Team and company plans

ChatGPT Business Monthly list price for 2+ seats. Annual billing is available. Codex pricing also refers to a $20 and a $100 Business plan for Astra access. $25 /seat / month
Enterprise / Edu Flexible credit billing or Plus-equivalent per-seat limits. not public /custom

The part pricing pages bury

What happens when you hit the limit

  1. 1

    Read the vendor notes

    Local messages and cloud chats share the ChatGPT plan allowance.

  2. 2

    Note 2

    GPT-5.5 retires from Codex with ChatGPT sign-in on 14 Oct 2026 at 12:00 PDT. API-key sessions are unaffected.

Price history

Full changelog
  1. Limits changed

    GPT-5.5 leaves Codex for ChatGPT sign-in

    OpenAI retires GPT-5.5 from Codex sessions authenticated with ChatGPT on 14 Oct 2026 at 12:00 PDT (19:00 UTC). OpenAI API and API-key Codex sessions are not affected.

    ChatGPT Learn: Pricing

Sources

Copied from vendor pages on the date shown.

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Questions people ask

OpenAI Codex published paid entry is $8/mo and lists a $0 plan (Limited Codex access on ChatGPT Free.). Checked Oct 15, 2026 on ChatGPT plans and pricing.

Yes. ChatGPT Free is $0 per month. Limited Codex access on ChatGPT Free. Checked Oct 15, 2026 on ChatGPT plans and pricing.

ChatGPT Go is $8 per month. Checked Oct 15, 2026 on ChatGPT plans and pricing.