Local-first AI
Run open models on your Mac so conversations, code, and files stay on device instead of being sent to a server.
Osaurus
Osaurus is a native macOS AI agent platform for Apple Silicon that keeps models and data on your Mac. It can also connect to ChatGPT, Claude, or Gemini when a task needs a cloud model.
Overview
Osaurus is a native macOS app for Apple Silicon that acts as a home base for AI agents on your Mac. It is designed around local AI, with open models running on-device so your data stays on your machine.
The product combines model switching, file access, memory, and automation so you can build agents that work with your local environment. The site also says you can add cloud models such as ChatGPT, Claude, or Gemini when a task needs them, while keeping one shared memory across models.
Core features
Model connectivity
Connect Ollama, MLX, or LM Studio in one click, and add ChatGPT, Claude, or Gemini when a task calls for a cloud model.
Shared memory
Keep one shared memory across local and cloud models so context can carry between tasks and model changes.
File and task automation
Drop in files, assign tasks, and let agents read, write, and execute against your local environment.
Agent workflows
Build autonomous agents with voice control, folder watchers, browser plugins, and parallel jobs.
Skills library
Use the bundled skills library for Apple Music, Notes, Calendar, Contacts, Mail, Maps, Messages, Reminders, browser control, search, vision, spreadsheets, and more.
Practical use cases
Private local AI work
Use Osaurus as a local assistant that can read files, write outputs, and work inside your Mac environment without sending data off device.
Autonomous workflows
Set up agents that watch folders, control the browser, and run jobs in parallel for background automation.
Hybrid local-and-cloud tasks
Connect cloud models only for specific tasks that benefit from them, while preserving shared context across model switches.
macOS app automation
Use the skills library to interact with Apple apps such as Notes, Calendar, Mail, Messages, Reminders, Maps, and Apple Music.
Research and grounded assistance
Ground research and content tasks with built-in search, browser, and vision-related skills when a workflow needs web or image context.
Pros and Cons
Pros
- Runs on-device on Apple Silicon Macs, which keeps data local.
- Supports both local models and optional cloud models for specific tasks.
- Offers one shared memory across models.
- Includes a large set of ready-made skills for common macOS and web workflows.
- Can be installed directly or with Homebrew, and the site says no account is needed to launch the app.
Cons
- The site is centered on Apple Silicon Macs, so it is not presented as a cross-platform product.
- Pricing details are not available on the pricing page because that page currently returns a 404 on the site.
FAQ
What platform does Osaurus run on?
Osaurus is a native macOS app for Apple Silicon and requires macOS 15.5 or later.
How do you install Osaurus?
The homepage says you can download the app directly or install it with Homebrew using `brew install osaurus`. It also says the native Swift app opens from a .dmg and does not require an account.
Can Osaurus use both local and cloud models?
Osaurus is built for local AI first: open models run on your Mac, and you can add ChatGPT, Claude, or Gemini when a task needs them.
What can agents do in Osaurus?
The site says agents can drop in files, assign tasks, read and write, run tools, and work autonomously with features like voice control, folder watchers, browser plugins, and parallel jobs.
Is Osaurus free?
The site does not show a pricing page with plan details. One source page indicates the product is MIT licensed, free to use and modify, with no subscription or usage caps.
Quick Facts
- Category
- AI agent platform
- Platform
- macOS 15.5+ on Apple Silicon
- Model support
- Ollama, MLX, LM Studio, ChatGPT, Claude, Gemini
- License
- MIT
- Installation
- Download .dmg or `brew install osaurus`
- Source domain
- osaurus.ai
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