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Osaurus for Windows

Osaurus for Windows is a free app for using AI on your PC. You chat with AI assistants (called agents) that remember what matters to you, work on files in folders you choose, and can be reached from your phone. Your chats, memories, and settings stay on your PC.

You choose the AI "brain" (the model) behind each assistant. It can be a local model that runs on your PC and works offline, or a cloud model such as GPT, Claude, or Gemini when you want one. Nothing leaves your PC unless you pick a cloud model or turn on a feature that needs the internet.

Public beta

Osaurus for Windows is in public beta on Windows 11, from the Microsoft Store. These pages describe version 0.1.9. Release notes are posted in the community forum.

Install

Get Osaurus from the Microsoft Store, check what your PC needs, and find where your data lives.

Get started

First launch: pick a model, meet the Orchestrator, and find your way around Control Center.

Windows and Mac

What's the same as Osaurus for Mac, what works differently, and what isn't on Windows.

Command line

The osaurus command: start and stop the server, pull models, connect MCP clients, and install bundles.

The same Osaurus, built for Windows​

Osaurus for Windows is a separate app written for Windows, not a copy of the Mac app. It shares Osaurus's ideas, your account, and the local server that other apps connect to, so most of what the rest of these docs describe works the same way. The Windows and Mac page lists what's different.

  • Local models run through llama.cpp on your graphics card (NVIDIA through CUDA, or any recent GPU through Vulkan) or on your processor, instead of Apple's MLX.
  • Settings live in Control Center, the Windows counterpart of the Mac's Settings… window.
  • The same server, on the same port. Apps that work with OpenAI, Anthropic, or Ollama connect to http://127.0.0.1:1337, as on a Mac. See the HTTP API.

Pages under Windows in the top bar are written for the Windows app, with one page for each feature: agents, memory, local models, the sandbox, browser use, schedules and watchers, and more in the sidebar. Each one says where it differs from the Mac.

The rest of the site describes the Mac app. Its pages go into more depth on how features work, and the HTTP API applies to Windows too.