openai/codex

Lightweight coding agent that runs in your terminal

RustApache-2.0 Last commit 2 hours ago

Open on GitHub

Last 24 hours: +86; stars
Last 7 days: +1.2k; stars
Last 30 days: +5.2k; stars
Total stars: 129,552; 124k a month ago
Forks: 20,391; 478 contributors

Star history

Last 12 weeks · weekly cumulative stars · computed from public GitHub star events

Momentum: #123 in Rust this week · +1.2k stars this week

Rank in its topics

Position among repos ranked in each topic (min. 20 stars gained)

Rank of openai/codex in each topic for today, this week and this month
Topic	Today	This week	This month
Rust	#85of 97	#123of 279	#117of 408
Coding agents	#149of 181	#206of 407	#215of 529

Health signals

HealthyChecked Oct 15, 2026

Commit activity: Commits in 13 of the last 13 weeks 4,006 commits on the default branch in 90 days
Maintainers: 41 active maintainers Top author: 24% of the last 100 commits
Issue responsiveness: Median first response: 2 hours 0 of the latest 50 issues opened in 90 days are closed
Pull requests: 50 merged, 0 closed, 0 open Of the latest 50 opened in 90 days
Releases: Last release: 2 days ago 50+ releases in the last 12 months
Project hygiene: License, CI and security policy
OpenSSF Scorecard: 6.0 / 10 (opens in new tab) Scanned Oct 12, 2026

Signals are computed automatically from public GitHub data. They are not an endorsement or a security audit. How health is computed

README

README.md

Codex CLI is a coding agent from OpenAI that runs locally on your computer.

If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.

Quickstart

Installing and running Codex CLI

Run the following on Mac or Linux to install Codex CLI:

curl -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"

The standalone installers download from https://releases.openai.com/codex by default and fall back to GitHub Releases if a metadata or asset download is unavailable. To force GitHub Releases, set CODEX_INSTALLER_USE_RELEASES_OPENAI_COM to false (0 and no are also accepted):

curl -fsSL https://chatgpt.com/codex/install.sh | CODEX_INSTALLER_USE_RELEASES_OPENAI_COM=false sh

$env:CODEX_INSTALLER_USE_RELEASES_OPENAI_COM='false'; irm https://chatgpt.com/codex/install.ps1 | iex

Codex CLI can also be installed via the following package managers:

# Install using npm
npm install -g @openai/codex

# Install using Homebrew
brew install --cask codex

Then simply run codex to get started.

You can also go to the latest GitHub Release and download the appropriate binary for your platform.

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
Linux
- x86_64: codex-x86_64-unknown-linux-musl.tar.gz
- arm64: codex-aarch64-unknown-linux-musl.tar.gz

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.