32b062d0e1
Fixes #9822 ### Summary Make the Homebrew upgrade command explicit by using `brew upgrade --cask codex`. ### Motivation During the Codex self-update, Homebrew can emit an avoidable warning because the name `codex` resolves to a cask: ``` Warning: Formula codex was renamed to homebrew/cask/codex. ```` While the upgrade succeeds, this relies on implicit name resolution and produces unnecessary output during the update flow. ### Why `--cask` * Eliminates warning/noise for users * Explicitly matches how Codex is distributed via Homebrew * Avoids reliance on name resolution behavior * Makes the command more robust if a `codex` formula is ever introduced ### Context This restores the `--cask` flag that was removed in #6238 after being considered “not necessary” during review: [https://github.com/openai/codex/pull/6238#discussion_r2505947880](https://github.com/openai/codex/pull/6238#discussion_r2505947880). Co-authored-by: Eric Traut <etraut@openai.com>
npm i -g @openai/codex
or brew install --cask codex
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 are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# 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
- 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, Team, 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.