Fast · Open source · CLI & Desktop

A fast coding agent built to get things done.

Run the Cook CLI in your terminal, or use Let Cook on Windows, macOS, or Linux. Bring your own API key, or connect through OAuth with Grok, ChatGPT, Claude, and more.

CLIcurl -fsSL https://download.letcook.dev/install.sh | CLI_ONLY=1 bash
Desktopcurl -fsSL https://download.letcook.dev/install.sh | DESKTOP_ONLY=1 bash

Windows users can download the CLI and desktop app below. See all downloads

Fast from the first command

Cook is a native Rust binary built to start quickly and keep every turn moving.

  • Starts in milliseconds.No Node, no Python, no JVM. cook is a single Rust binary on yourPATH.
  • Keeps work moving.Streaming, tool calls, and subagents overlap in one runtime instead of waiting in a queue.
  • A lightweight desktop app.Let Cook uses Tauri and the system webview instead of bundling a browser.

Make Cook yours

Set up your models, skills, commands, and permissions with simple files.

  • Models. Connect your preferred provider and use your own API keys.
  • Skills and commands. Add reusable instructions and shortcuts without changing the code.
  • Permissions. Choose what Cook can read, run, and write.

Get Cook running

Install only the app you want. Use the commands on macOS or Linux, or choose a Windows download below.

Let Cook desktop app

Cook CLI