Codex
Codex is OpenAI's coding agent for software development. ChatGPT Plus, Pro, Business, Edu, and Enterprise plans include Codex. It can help you:
- Write code: Describe what you want to build, and Codex generates code that matches your intent, adapting to your existing project structure and conventions.
- Understand unfamiliar codebases: Codex can read and explain complex or legacy code, helping you grasp how teams organize systems.
- Review code: Codex analyzes code to identify potential bugs, logic errors, and unhandled edge cases.
- Debug and fix problems: When something breaks, Codex helps trace failures, diagnose root causes, and suggest targeted fixes.
- Automate development tasks: Codex can run repetitive workflows such as refactoring, testing, migrations, and setup tasks so you can focus on higher-level engineering work.
[### Quickstart
Download and start building with Codex.
Get started](https://developers.openai.com/codex/quickstart) [### Explore use cases
Get inspiration on what you can build with Codex.
Learn more](https://developers.openai.com/codex/use-cases) [### Community
Read community posts, explore meetups, and connect with Codex builders.
See community](/community) [### Codex for Open Source
Apply or nominate maintainers for API credits, ChatGPT Pro with Codex, and selective Codex Security access.
Learn more](https://developers.openai.com/community/codex-for-oss)