Lesson 5 of 7
Privacy & offline
5 min read
When you chat with a cloud AI, your message travels to a company's servers. What if it never had to leave your desk at all?
Nothing leaves the device
This is the biggest reason people run models locally. With a cloud service, every message you send crosses the internet to a company's servers, where it may be stored or used to improve their model. With a local model, the computation happens on your device — your words never leave it. Nothing is uploaded, nothing is logged elsewhere, and it keeps working with the internet switched off.
A local model runs on your device, so your data never travels to anyone's server.
Private by default, offline by nature
That makes local AI a natural fit for anything sensitive — personal notes, medical or legal details, company documents, code you can't share. It's also genuinely offline: on a plane, off the grid, or behind a strict firewall, a local model just works. You trade the convenience of always-latest cloud models for full control over your data.
Local means private and offline — ideal for sensitive work and places with no connection.
'Local' only counts if the whole model runs on your machine. A local app that still calls a cloud model behind the scenes sends your data away just the same — check where the model actually runs.
Why local is private
- —Local runs on your device — data never leaves it.
- —Cloud sends every message to a company's servers.
- —Local also works fully offline, anywhere.
Why is a local model more private than a cloud one?
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