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# Osaurus
> A macOS-native framework for local AI agents with offline execution and cryptographic identity.
## Main
- [Osaurus — Own your AI](https://osaurus.ai/): The native macOS harness for AI agents. Any model, persistent memory, autonomous execution, cryptographic identity. Built in Swift. Fully offline. Open source
- [Osaurus for Windows: Private Local AI Agents on PC](https://osaurus.ai/windows): Osaurus for Windows is in beta. Run open-source AI models on a Windows 11 PC, offline, no account, private. Agents read files and run tools. Free. Join the beta
## Guides
- [Guides](https://osaurus.ai/guides): Practical guides for Osaurus — why local AI belongs on your Mac, and how to set up a private knowledge base
- [Why Osaurus: private, local AI that runs on your Mac](https://osaurus.ai/why-osaurus): Why use Osaurus? It runs AI on your Mac instead of a server, so it works offline and your files stay yours. Free, open source, no account. Download for Mac
- [Why is Osaurus free?](https://osaurus.ai/why-free): Osaurus is free because local AI runs on your Mac, not our servers. MIT licensed, open source, no account and no local usage caps. See how we fund it
- [How to set up a knowledge base with Osaurus](https://osaurus.ai/guides/knowledge-base-setup): Set up a local AI knowledge base on your Mac in two minutes. Your folder is indexed in place - nothing uploaded, no account, originals never touched
- [How to connect MCP tools in Osaurus](https://osaurus.ai/guides/mcp-setup): Give your local AI hands. Connect an MCP server in Osaurus in under a minute - ready-made services in a few clicks, or your own custom JSON tool.
## Blog
- [Blog](https://osaurus.ai/blog): Read Osaurus product updates, engineering notes, and practical deep dives on local AI, private agents, open models, and native macOS tools
- [The Obvious Case for Open and Local AI](https://osaurus.ai/blog/the-obvious-case-for-open-and-local-ai): AI is a step change in what one person can do—but the power is being rented back to us. Here's the case for intelligence you can run, inspect, and keep
- [Building on the Edge: Why We're Betting on Local-First AI](https://osaurus.ai/blog/building-on-the-edge-why-were-betting-on-local-first-ai): What's happening with Dinoki, where Osaurus fits in, and why we're building AI infrastructure that puts you at the center
- [On Personal AI](https://osaurus.ai/blog/on-personal-ai): A thesis on personal AI: why it should be private, local, composable, and owned by the people who use it—and how Osaurus is building that future
- [On Decentralized Acceleration](https://osaurus.ai/blog/on-decentralized-acceleration): Applying Vitalik's d/acc framework to AI — why every cloud prompt is a quiet transfer of power, and what the alternative looks like
- [The Missing macOS LLM Server](https://osaurus.ai/blog/the-missing-macos-llm-server): Why we built Osaurus: a native macOS LLM server for developers who want private local models, OpenAI-compatible APIs, and tools crafted for the Mac
- [Raptor 0.6: A Small Agent Model on a New Base](https://osaurus.ai/blog/raptor-06): Raptor 0.5 shipped and then it looped. What we found, why we moved to Spark-X2.5-4B, and how the 3.7 GB Raptor 0.6 was built for the Osaurus harness
- [Raptor 0.5: A Small Agent Model for the Macs Everyone Actually Owns](https://osaurus.ai/blog/raptor-05): An open 8B-A1B model tuned for automation and business work. 6.3 GB on disk, built to run on 8–16 GB Macs
## Changelog
- [Changelog](https://osaurus.ai/changelog): See what is new in Osaurus, including the latest features, fixes, and improvements
## Company
- [About](https://osaurus.ai/about): Osaurus is an open source, MIT licensed harness for personal AI. It runs natively on your Mac, works with any model, and keeps your data, memory, and agents under your control
## More
- [Models](https://osaurus.ai/models): Open, on-device models built for reliable tool use, native Mac automation, and private local agents
- [Raptor 0.6: A Small Agent Model on a New Base](https://osaurus.ai/models/raptor-06): A 4B dense agent model built on Spark-X2.5-4B, fine-tuned on the Osaurus tool surface, and quantized to 3.7 GB — reasons by default, decodes at ~105 tokens/s on an M5 Max, and stays resident on 8–16 GB Macs
- [Raptor 0.5: A Small Agent Model for the Macs Everyone Actually Owns](https://osaurus.ai/models/raptor-05): An 8B mixture-of-experts that activates only ~1B parameters per token, runs the full Osaurus tool surface in 6.3 GB, and stays resident on 8–16 GB Macs
- [AppleScript-8B & AppleScript-16B-A4B: Small Models That Actually Drive Your Mac](https://osaurus.ai/models/applescript): Two open models that turn plain-English requests into working macOS automation — on-device, tool-calling, and quantized for Apple Silicon
- [Themes](https://osaurus.ai/themes): Beautiful themes for Osaurus. Customize the look and feel of your AI assistant with community-built themes
- [Skills](https://osaurus.ai/skills): Powerful skills to automate your workflow. Browser control, file management, git operations, and more
- [Media](https://osaurus.ai/media): Press coverage and articles about Osaurus — the native macOS harness for local AI models, agents, and the Model Context Protocol
- [Brand](https://osaurus.ai/brand): Osaurus brand assets — logos, colors, typography, mascots, and app icons. Download everything you need to represent Osaurus correctly
- [Credits](https://osaurus.ai/credits): Manage your Osaurus credits. Credits are applied to your account through the Osaurus app after a successful payment
## Optional
- [Contact](https://osaurus.ai/contact): Contact the Osaurus team with questions about local AI, partnerships, press, product feedback, or support. We’ll get back to you soon
- [Terms of Service](https://osaurus.ai/terms): Read the Osaurus Terms of Service covering the macOS application, hosted AI services, credits, acceptable use, content, and your legal rights
- [Privacy Policy](https://osaurus.ai/privacy): Osaurus Privacy Policy — how we handle your information when you use the Osaurus application and hosted services