Codex
29 April 2026 (Updated 29 April 2026)
What is Codex?
Codex is OpenAI’s open-source coding agent that you can run from your terminal. It can read, change and run code from a specified directory.
Install
On macOs, run:
brew install codex
Run:
codex
Recipes
Change model
/model
Ask it to review your changes
Run:
/review
Tagged:
AI