---
title: Chat
slug: /specs/chat
description: Jan is a ChatGPT-alternative that runs on your own computer, with a local API server.
keywords: [Jan, ChatGPT alternative, on-premises AI, local API server, local AI, llm, conversational AI, no-subscription fee]
---

## Overview

A home screen for users to chat with [assistants](/specs/assistants) via conversation [threads](/specs/threads).

![alt text](../img/chat-screen.png)

## User Stories

<!-- Can also be used as a QA Checklist -->

- Users can chat with `Jan` the default assistant
- Users can customize chat settings like model parameters via both the GUI & `thread.json`