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OpenAI Codex

OpenAI's coding agent for the CLI, IDE, web and desktop app; included in ChatGPT plans.

Build apps (vibe coding)Coding agentIn 2 rankings

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What OpenAI Codex does on its own Reads your repo, makes changes, runs tests and proposes a pull request, locally or in the cloud; you review the diff before it merges. All coding agents

Plans and prices (USD per month)

PlanPriceNote
FreeFreeCodex in the desktop app, subject to rollout
Go$8/molighter coding tasks
Plus$20/moCodex on web, CLI, IDE extension and iOS
Pro$100/mo$100, $200 or $500/mo tiers; monthly billing
Business$25/moper user; $20/mo billed annually; 2+ users
Enterprise / EduContact sales

From the official pricing page · 2026-10-18. Prices change, so check with the vendor before you pay.

Details

Pricing note
No separate Codex subscription: it shares usage with ChatGPT plans. Free $0 (desktop app, subject to rollout), Go $8/mo, Plus $20/mo, Pro $100, $200 or $500/mo, Business $25/user/mo ($20 billed annually); Enterprise via sales. Using an API key bills at API rates.
Official pricing page
developers.openai.com/codex/pricing
Arabic support
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Payment methods
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Official sources we checked
ChatGPT docs: pricing (redirect from developers.openai.com/codex/pricing) (2026-10-18)

OpenAI Codex examples: 1 real example All examples

What people actually did with OpenAI Codex, with the source, the outcome and a prompt to try.

Fire off code research jobs to async agents and read the results later OpenAI Codex Build apps (vibe coding)

Fire off code research jobs to async agents and read the results later

Simon Willison ran two or three short research prompts a day on fire-and-forget coding agents (Codex Cloud, Claude Code for web, Jules, Copilot coding agent) in a throwaway GitHub repo, for example benchmarking Python Markdown libraries and compiling a C extension to WebAssembly.

Simon Willison (personal blog) · simonwillison.net · · 1 account

Ranked in

#1 Global

Best AI coding agent for a real task in your repo

CLI, IDE, web and desktop; included in ChatGPT plans from $8/mo, no separate subscription.

Last checked: 2026-10-18

#4 Global

Best open-source AI agent to self-host and inspect

Last checked: 2026-10-18

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