---
title: How Jan Works
description: Jan is a ChatGPT-alternative that runs on your own computer, with a local API server.
keywords: [Jan AI,  Jan, ChatGPT alternative, local AI, private AI, conversational AI, no-subscription fee, large language model ]
---

- Local Filesystem
  - Follow-on from Quickstart to show how things actually worked
  - Write in a conversational style, show how things work under the hood
  - Check how filesystem changed after each request
- Model loading into RAM/VRAM
  - Explain how the .bin file is loaded via Llama.cpp
  - Explain how it consumes RAM and VRAM, and refer to system monitor
