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OpenAI Codex

by OpenAI

OpenAI's coding agent for the terminal, IDE, desktop, and cloud

Visit openai.com FreemiumOpen source

Codex is a coding agent from OpenAI. The open-source Codex CLI runs locally in a terminal and can read, edit, and run code in a repository; the same agent is available as an IDE extension, a desktop app, and a cloud agent in ChatGPT.

Key features

  • Local terminal agent that edits and runs code
  • Sign in with ChatGPT or use an API key
  • IDE extension for VS Code and compatible editors
  • Cloud tasks via Codex in ChatGPT
  • MCP server support

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