maximal

Connect the AI tools you use to the models in GitHub Copilot.

Download for macOS v0.4.44 Download for Windows v0.4.44

Why try maximal

maximal swaps out the engine your AI tools use with the models that power GitHub Copilot. You get all of the agility and creativity without sacrificing the power, privacy, and security of GitHub Copilot.

The tools you use

  • Claude Code
  • Claude Cowork
  • Codex
  • opencode
  • GitHub Copilot
  • any Anthropic / OpenAI SDK

maximal

GitHub Copilot Models

  • Claude Opus 4.8
  • Claude Sonnet 4
  • OpenAI GPT-5.5
  • OpenAI GPT-5.3 Codex
  • Gemini 3 Pro
  • …and more
maximal's usage dashboard showing token usage broken down by model across your tools over the last 30 days
Every tool, every model, every token. See exactly where your Copilot subscription goes.

Get started

Up and running in three steps.

  1. Install maximal

    Grab the app for macOS or Windows; it sits quietly in your menu bar or system tray.

    macOS v0.4.44 Windows v0.4.44

    Homebrew and other options are in the README · all releases .

  2. Sign in with GitHub

    One click connects your existing GitHub Copilot subscription. No new account, no extra cost.

    maximal's Account panel showing 'Not signed in' with a Sign in to GitHub button.

  3. Pick your tools

    Point Claude Code, Codex, opencode, or GitHub Copilot at maximal and they run on your Copilot models.

    maximal's Apps panel with one-click toggles for Claude Code and Claude Desktop pointed at the proxy.