# Codex

Tool · [Standard tools and platforms](https://ecosystem.samcarlton.com/tools)

Also called: OpenAI Codex, Codex CLI, ChatGPT Codex, Codecs, Kodex

[OpenAI](https://ecosystem.samcarlton.com/chatgpt)'s [AI coding](https://ecosystem.samcarlton.com/vibe-coding) [agent](https://ecosystem.samcarlton.com/ai-agent). It reads a project's code, makes changes and runs commands to carry out a task a person describes. It runs in the [terminal](https://ecosystem.samcarlton.com/terminal), in [code editors](https://ecosystem.samcarlton.com/code-editor), in [the cloud](https://ecosystem.samcarlton.com/terms/cloud) and inside the ChatGPT apps. It is the same kind of tool as [Claude Code](https://ecosystem.samcarlton.com/claude-code).

**For example:** A [developer](https://ecosystem.samcarlton.com/software-engineer) asks Codex to find why a signup form fails on phones. Codex reads the code, proposes a fix and the developer reviews it.

Official site: <https://developers.openai.com/codex>

## Connects to (9)

- [Coding agent](https://ecosystem.samcarlton.com/coding-agent): An AI agent that writes and changes code.
- [ChatGPT](https://ecosystem.samcarlton.com/chatgpt): An AI chat assistant made by OpenAI.
- [Claude Code](https://ecosystem.samcarlton.com/claude-code): An AI coding agent made by Anthropic.
- [Terminal](https://ecosystem.samcarlton.com/terminal): A text window where a person types commands to a computer and reads its replies.
- [Vibe coding vs software engineering](https://ecosystem.samcarlton.com/vibe-coding-vs-software-engineering): Two ways to build software with AI.
- [Cursor](https://ecosystem.samcarlton.com/cursor): An AI code editor and coding agent made by the company Anysphere.
- [ChatGPT Sites](https://ecosystem.samcarlton.com/chatgpt-sites): A ChatGPT and Codex feature for creating, previewing, publishing and sharing simple websites and web apps, which OpenAI hosts.
- [T3 Code](https://ecosystem.samcarlton.com/t3-code): An open-source desktop app for running and managing several AI coding agents, such as Codex and Claude Code, from one place.
- [Codex Ambassadors](https://ecosystem.samcarlton.com/openai-codex-ambassador): An OpenAI volunteer program for people who build communities around Codex, its coding agent.

## Follow

- [X](https://x.com/OpenAIDevs)
- [Discord](https://discord.com/invite/openai)
- [Events](https://luma.com/codex-community)


Map view: https://ecosystem.samcarlton.com/codex