AI agents that work with your files, remember what matters, and turn everyday tasks into reusable workflows. Run AI on your computer, or connect to the cloud models you choose.
Osaurus asks before it changes a file.
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Own your AI
Most AI products keep your memory, tools, and workflows tied to their platform. Osaurus keeps them on your computer, so you can change models without starting over.
Why owning your AI mattersOn your computer
Stays with you when you switch models
Built for your computer
Osaurus brings agents, memory, tools, and models together on the computer you already own.
A native Windows 11 app built for your PC. Run open models locally with GPU acceleration, use cloud models when needed, and keep your agents working from the system tray.
Run capable local models with Apple Silicon acceleration. Keep agents, memory, and tools together in a native Mac app, with frontier models available when you need them.
Workflows
Turn the work you do every day into workflows your agents can run again. Give them the right context, tools, and permissions. Stay in control of the result.
Review a contract against your checklist, prepare a client update from your notes, or sort a folder of documents. Set it up once, then run it whenever you need it.
Models
Run capable open models directly on your computer. Switch to frontier models when the task calls for them. Your agents, memory, and tools stay with you.
A small agent model for steady tool use. On a Mac it runs in as little as 8 GB of memory. On Windows it ships as a GGUF.
Runs on Mac · Windows
Qwen's 125B Qwen3.8-Flash-Next, compressed to fit a 48 GB Mac. For coding, agent work and reasoning.
Runs on Mac only
Work with your files, keep useful context, and decide what your agents can do.
Once downloaded, local models work without an internet connection for chat and your local files. Cloud models, web browsing, and connected services need a connection and may send data off your computer.
Give an agent a folder of notes, documents, or references, and it works from your own material.
Agents keep useful memory on your computer, so it carries across conversations and across the local and cloud models you use.
With a local model, the model runs on your computer. Cloud models and connected services receive what you send them. The Privacy Filter, experimental on Mac, can swap personal details for placeholders first, but it can miss things.
Agents ask before they change a file, and you can undo the change. You choose the folders each agent can work in.
Insights shows what your agents did, including anything that left your computer.
From the community
Introducing Mycroft 2.0, an investigator harness built on @OsaurusAI. It runs investigations with models on your computer and connects them to all of my tools.
Your sensitive cases and material can now stay entirely on your computer, where small models do the work with you.
Oh, what a difference a week makes: I received my M5-Pro 64G MacMini and I am experimenting with 100% private personal AI. I configured the open @OsaurusAI open source macOS app to use only local models and recurring research and digital housekeeping tasks work very well. Set it and forget it, but for a while I imagine I will experiment with my setup.
Apple @ Work Podcast: Osaurus wants your company’s AI to run on the Mac, not in the cloud
When I teach builders how to keep agent memory and tools on their own machine, I point them at Osaurus first.
It is a native Mac harness for AI agents. You pick a local model or a cloud one, and the memory, tools, sandbox, and identity stay on your Mac. Agents can remember what matters, run code in a sandbox, and speak OpenAI, Anthropic, and Ollama APIs on one local port so the SDKs you already use keep working. MCP works in and out, which matters when I wire Cursor into the same tool surface.
github.com/osaurus-ai/osaurus (opens in a new tab)
@OsaurusAI does the muscle, Ornith does the hustle.
🙌 Two bros took all daily grind.
Check out the amazing work from Osaurus team!!
A lot of time passed from the first time I tried Osaurus on my Macs. It has improved like crazy! Lot of skills, tools and more polished UI.
What a pleasant surprise! Great job @OsaurusAI 🙌
Privacy, cost, and what runs where. Still looking for an answer? Ask the people who build it in the community.
Build agents around your work, keep what they learn, and use the models you choose.
