OpenAI Codex (ChatGPT Go/Plus/Pro/Business) pricing and free tier
OpenAI Codex (ChatGPT Go/Plus/Pro/Business) free tier: Codex is available on the free ChatGPT plan with usage limits. The cheapest plan billed monthly is Go at $8/month (Codex with usage limits.). Checked on the official pricing page on .
Prices are from each vendor's official pricing page, checked on . This page has no affiliate links.
| Plan | Billed monthly | Billed annually, per month | Usage limit |
|---|---|---|---|
| Go | $8 | — | Codex with usage limits. |
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| Plus | $20 | — | Higher Codex usage limits. |
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| Pro (lowest tier) | $100 | — | Three usage tiers at $100, $200 and $500 per month. |
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| Business (team) | $25 | $20 | Per user. 2 or more users. |
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| Enterprise (team) | — | — | Custom quote. |
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OpenAI Codex (ChatGPT Go/Plus/Pro/Business) official pages
| Website | chatgpt.com/codex |
|---|---|
| Pricing page | https://learn.chatgpt.com/docs/pricing |
| Checked | |
| Currency | USD |
| Free tier | Codex is available on the free ChatGPT plan with usage limits. Source |
Codex is included with ChatGPT Free, Go, Plus, Pro, Business and Enterprise. Business is $25 per user billed monthly or $20 per user billed annually. The Business premium seat price could not be read, so it is not listed. Go, Plus and Pro are monthly only.
Cheapest plans of other AI coding assistant tools
| Service | Monthly | Free tier |
|---|---|---|
| Cursor | $8 | Limited AI use (capped agent and chat requests). |
| Cline | $9.99 | Open-source version is free for individuals. AI inference is pay-as-you-go or bring your own key. |
| GitHub Copilot | $10 | 2,000 code completions/month. Chat and agent use is limited. |
| Zed | $10 | Personal: free editor. Unlimited with your own API key or external agents. |
| Amazon Q Developer | $19 | 50 agentic requests/month. 1,000 lines of Java upgrade transformation/month. |
| Google Antigravity (Google AI Pro/Ultra) | $19.99 | Unlimited Tab completion. Unlimited command requests. Base weekly rate limits. |
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Links marked "Affiliate link" pay us a commission if you subscribe. They do not change the order of the tables, which is sorted by price. Prices are as published by each vendor (most exclude sales tax and VAT). Check the vendor's page before you buy.
How this data is collected: Prices are read by hand from each vendor's official pricing page and stored with the date and source URL. Values we could not confirm there are left blank. Last checked .