Works offline.
Raptor and other local models run on your computer. Turn off the Wi-Fi and keep working. Nothing leaves unless you choose a cloud model.
AI agents that live on your computer, not in someone else's cloud. With a local model, your work stays on your machine.
Osaurus asks before it changes a file.
Press
Local. Open. Stays on your machine.
Open models built and compressed for Osaurus, from a small agent for 8 GB Macs to a 125B model on a 48 GB Mac. The work happens on your machine instead of in a data center.
A small agent model for steady tool use. Built for 16 GB Macs, and runs on as little as 8 GB.
Qwen's 125B Qwen3.8-Flash-Next, compressed to fit a 48 GB Mac. For coding, agent work and reasoning.
They work under your rules.
Raptor and other local models run on your computer. Turn off the Wi-Fi and keep working. Nothing leaves unless you choose a cloud model.
Give an agent a folder of notes, documents, or references, and it works from your own material.
Agents keep a memory of your conversations on your computer, across local and cloud models.
The Privacy Filter swaps names, emails, and account numbers for placeholders before a message goes to a cloud model, then puts them back in the reply.
It asks before it changes a file. Changes stay in the folder you chose, and you can undo them.
Insights shows everything Osaurus did, including anything that left your computer.
From the community
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.@OsaurusAI is so damn good right now that if they ever add a feature for building apps, a LOT of apps are going to be in trouble. 😂
Seriously, Osaurus is absolutely on fire right now. 🔥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 🙌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)Privacy, cost, and what runs where. Still looking for an answer? Ask the people who build it in the community.