Mixdog

The open-source coding agent that uses 63% fewer tokens.

Website · Benchmarks · Docs

https://github.com/user-attachments/assets/af515dc9-b0fb-4b6a-aaa1-1d82db792ed0

Highlights

• 63% fewer tokens than Codex CLI on the same model, at the
  same success rate.
• Auto reasoning effort — each message and tool step gets the effort it
  needs. On by default.
• Use the Claude, ChatGPT, or Grok subscription you already have, API
  keys, or local models on your own GPU.
• Mix models by role and scale from Solo to Swarm — a strong model leads
  while cheaper ones search, edit, and review in parallel.
• A full workspace: editor, terminals, Git and GitHub, code graph, and
  language servers.
• Keeps working on its own with Goals, schedules, and webhooks — and
  continues from your phone, end-to-end encrypted.
• Goes beyond code with browser and desktop control, Office and PDF
  documents, and image and video generation.
• Runs on Windows and macOS. No config files.

Installation

Download the desktop app:

Then sign in with a ChatGPT, Claude, or Grok account, or paste an API key. A
five-step tutorial walks you through the rest.

[!NOTE]
The Windows installer is not code-signed yet. If SmartScreen appears,
choose More info → Run anyway. The Mac app is signed and notarized.

Or run it in the terminal (Node.js 22.19+ or 24+):

npm install -g mixdog
mixdog

• Anthropic API keys and Claude account OAuth
• OpenAI API keys and ChatGPT/Codex account OAuth
• Google Gemini API keys
• xAI API keys and Grok account OAuth
• OpenRouter, DeepSeek, and OpenCode Go
• Built-in Local Provider — download and run models in the app
  (Windows x64 with an NVIDIA GPU)

Cursor and Antigravity (Gemini) OAuth are off by default under
Settings → Developer; using them through OAuth risks account restrictions.

mixdog exec runs one non-interactive, single-model session without personal
memory, prior sessions, skills, MCP servers, or plugins:

mixdog exec --provider openai-oauth --model gpt-5.6-sol --effort xhigh "fix the failing test"

Web search is off by default (--web-search enables it). This does not block
shell networking — headless exec is not an offline sandbox. Run
mixdog --help for the full reference.

Benchmarks

All 89 Terminal-Bench 2.1 tasks × 5 trials on GPT-5.6 Sol xhigh, scored by the official Harbor verifier.

Mixdog used fewer tokens on 87 of 89 tasks. With Claude Opus 5, it solved 2
more tasks than Claude Code at 19% lower cost. Every verdict, log, and script
is published in benchmarks/terminal-bench-2.1/,
and Context efficiency explains where the
savings come from.

Documentation

• Context efficiency
• Benchmarks
• Code Tidy
• Git & GitHub
• Language servers
• Office runtime
• Development, configuration, and testing

Feedback

Found a bug or missing a feature?
Open an issue. If Mixdog saves
you tokens, a star helps others find it.

License

Mixdog is licensed under Apache-2.0. Third-party components retain
their respective licenses; see NOTICE.md.