How to Download Osaurus and What It Costs

Osaurus is a local AI agent app that runs on your own computer rather than in a cloud service. You can download it for Mac, and a Windows beta is also offered. The site links to a pricing page, so check that page directly for current cost and plan details before you commit. The site reports 232.9k downloads and 7.8k stars as adoption signals, and the Windows build is labeled Beta, so expect possible rough edges there.

What Osaurus Is

Osaurus describes itself as "powerful AI agents that live on your computer, not in someone else's cloud," with the tagline "Privacy isn't extinct." The core idea is that whatever you use the agents for stays with you, because processing happens locally on your machine.

The site's own demo shows the app window with an agent named Raptor (versions "Raptor 0.6" and "Raptor 4B" appear in the headings and interface). In the example, a Legal Helper agent reads a contract file (MSA-v3.docx) alongside a playbook (Playbook.md), flags that §9 conflicts with the playbook's liability rule, and drafts a tracked edit — changing "Liability is uncapped for all claims" to "Liability is capped at twelve months of fees." A second example shows a Practice Helper turning intake notes into a handoff summary, reading three files and pulling out symptoms, medication changes, and follow-ups.

That gives you a concrete sense of the intended workflow: point an agent at files on your machine, let it read and reason over them, and produce edits or summaries — all locally.

Platforms Available

The download button on the site offers Mac and Windows Beta. Because Windows is explicitly labeled Beta, treat it as a preview build: features may be incomplete, and stability may vary. If you need a dependable daily driver, the Mac build is the more established option based on what the site presents.

How to Download

1. Go to osaurus.ai.
2. Use the download option on the page and choose your platform — Mac, or Windows Beta.
3. Install and open the app. The interface shown on the site includes a file browser, an agent/project sidebar (with entries like Agents, Projects, and helper agents such as Legal Helper, Practice Helper, Books Helper, and Research Helper), and a chat-style input at the bottom.
4. To use an agent on your own files, point it at a folder or document and give it a task — for example, reviewing a document against a rules file, or summarizing notes.

The site does not publish system requirements in the material available here, so confirm compatibility on the download or pricing page before installing, especially for the Windows beta.

Cost and Plans

A pricing page exists at osaurus.ai/pricing. The available site material does not state specific prices, tiers, or whether any free option is included, so the only reliable step is to open that page and read the current terms yourself. Don't assume the app is free or that no account is needed — the source doesn't confirm either.

What to Check Before Installing

• Platform fit: Mac is the primary build; Windows is beta.
• System requirements: Not listed in the available material — verify on the site.
• Beta limitations: The Windows build may have missing or unstable features.
• Pricing and any login requirements: Confirm on the pricing page rather than inferring.
• Privacy expectations: The product's central claim is local processing, so your files stay on your machine — this is the main reason to choose it over cloud-based agents.

If your priority is keeping sensitive documents (contracts, notes, client files) off third-party servers, Osaurus is built around exactly that use case. If you need a polished, fully supported Windows experience today, the beta label is the main caveat to weigh.