Everything you need to know about Zimmer before you download.
Zimmer is a local-first AI app and on-premise intelligence platform. Unlike ChatGPT, Claude, or Gemini, Zimmer runs models directly on your hardware (or your company's dedicated server). Your data never leaves your control, with zero cloud dependency and no per-token charges.
The Free Plan is for individuals running models locally on their own Mac or Windows computer — 100% free forever. The Team Plan (Zimmer for Businesses) costs $29 per user per month (annual billing available on request), and deploys zimmer-server on a dedicated Apple Silicon Mac your company owns, allowing your whole team to query shared models, documents, and knowledge bases securely from the desktop app or any browser.
Yes! Zimmer is free forever for personal and commercial use on your own machine. There are no subscription fees, no per-token charges, and no trial period limitations.
Zimmer Server runs natively on an Apple Silicon Mac you already own or provision — a Mac Studio is recommended for a team, and a Mac mini is supported for smaller teams. When you outgrow one machine, additional Apple Silicon Macs join the same pool as worker nodes in about two minutes, and Zimmer routes each request to whichever node is least busy and has the model loaded. Linux and GPU cluster nodes are on the active roadmap, not shipped today.
Employees can connect via the native Zimmer desktop app (macOS/Windows) or through any web browser over your encrypted internal network. Zimmer uses passwordless hardware-sealed keypairs for instant, secure device enrollment, and the server opens zero inbound ports to the public internet.
Zimmer Server indexes your company's connected folders and knowledge bases with In-Retrieval Role-Based Access Control (RBAC). Employees only receive AI answers derived from internal documents they already have permission to access — restricted content never enters the model's context.
No. Everything Zimmer does — including document retrieval, code generation, and agent automation — happens 100% on your local machine or private server network. Your prompts and files are never sent to external servers or used to train third-party models. The desktop app offers a strictly opt-in, off-by-default anonymous performance metrics channel that reports metadata only (model id, tokens per second, coarse RAM class) and never prompts, files, or identity; B2B builds ship without it entirely.
Yes for inference. Once your AI models are installed, both Zimmer desktop and Zimmer Server run 100% offline for all document retrieval, code generation, and chat. Team licenses check subscription status with our licensing API every 7 days, caching a signed 14-day token so network outages do not interrupt service. Air-gapped deployments use an offline signed license file with zero network checks at all — available on Enterprise.
In heartbeat mode (Team plan), periodic 7-day license validation requests send exactly five metadata fields: licenseKeyId, instanceId, nonce, appVersion, and platform. No user identities, document or chat content, model names, file paths, hostnames, or seat usage are ever transmitted. Completely air-gapped Enterprise deployments use offline signed license files with zero outbound network calls.
Three main differences: data sovereignty, local execution, and capability. Zimmer runs on your hardware so data never leaves your building; it has zero per-token metered costs; and Zimmer's agents can directly access local files, execute commands, and run multi-agent workflows. The honest trade-off is that a local open model is not as capable as a frontier hosted model.
Yes. Zimmer is a Model Context Protocol client over stdio, SSE, and Streamable HTTP with the MCP OAuth 2.1 flow, and ships a 33-entry one-click connector catalog covering Slack, GitHub, GitLab, Notion, Linear, Atlassian, Asana, Stripe, Sentry, Postgres, Figma, and more. Any other MCP server can be added manually.
Yes. Zimmer supports multi-agent parallel execution. For instance, one agent can write code while another agent reviews security vulnerabilities or runs tests concurrently on your local machine. Agents chain up to 15 tool rounds per turn and can delegate to subagents with isolated context.
Yes, on macOS. Zimmer includes a real-time voice agent for natural spoken conversations, plus system-wide dictation that allows you to speak into any application on your machine even when Zimmer is minimized. All speech processing runs on-device. Voice and dictation are macOS-only; chat and agents run on both macOS and Windows.
Download the free preview and try it yourself. No commitment required.