Codex
Lightweight coding agent that runs in your terminal
Codex CLI is a coding agent from OpenAI that runs locally on your computer. The project is written primarily in Rust, distributed under the Apache License 2.0 license, first published in 2025. It has gained significant community traction with 87,115 stars and 12,753 forks on GitHub.
Quickstart
Installing and running Codex CLI
Run the following on Mac or Linux to install Codex CLI:
shellcurl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
shell# Install using npm npm install -g @openai/codex
shell# Install using Homebrew brew install --cask codex
Then simply run codex to get started.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.
Contributors
Showing top 12 contributors by commit count.