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OpenAI Codex

OpenAI's coding Agent, usable in ChatGPT, editors and the terminal

FreePaidTerminalAgentCode
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At a glance

What it does

OpenAI's coding Agent, usable in ChatGPT, editors and the terminal

Free or paid FreePaid

ChatGPT Free includes Codex in the desktop app (GPT-6 Luna at standard speed, rolling out)

Best for
  • Developers already on a ChatGPT plan
  • Using a coding Agent in the terminal, editor and web
Not for
  • Shipping without ever reading the code

Pricing details

Websiteopenai.com
Free planChatGPT Free includes Codex in the desktop app (GPT-6 Luna at standard speed, rolling out)
PaidGo $8/month; Plus $20/month (web, CLI, IDE extension, iOS); Pro from $100/month; or use an API key at API rates
Check status Checked against the official site on 2026-10-28 · Pricing source

We do not show ratings, user counts or review counts because they are hard to verify. The official site is the final word on pricing.

Appears in these scenarios

Let an AI Agent complete coding tasks on its own in the terminalCoding tasks handed to a terminal Agent, with you only reviewing

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