Burrow.

How Burrow works

Burrow is a web page that brings small AI models with it. Your phone or computer runs them. There is no Burrow server, so there is nowhere for your messages to go.

What happens when you use it

  1. The first time a skill is used, its model downloads once (tens of MB) and stays saved on your device.
  2. Your device runs it. The answer shows where it ran and how long it took.
  3. After that it works offline.

What runs where

DeviceWhat it can run
iPhoneUp to 3 small helpers at once (scam check, voice to text)
Computer with a GPUMore helpers, plus a small "thinking" model for summaries
AndroidNot tested yet

Measured on real devices on 2026-10-10. Burrow checks your device before loading anything, so it won't try something that would crash the page.

Privacy, in plain words

This device

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