Jan

A local-first ChatGPT alternative for private, model-agnostic chat

Jan is an open-source desktop app that lets you run local AI models on your own machine or connect to cloud providers like GPT and Claude. It’s aimed at people who want a ChatGPT-style interface with more control over where their models run and where their data goes.

Agenticness = how independently a tool can take action, scored across 9 dimensions. Scored independently by David Kooi, Skylark Creations — see full rubric →

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Open Source

Desktop

Web Browsing

B2B

Self-Hosted

Model Agnostic

Supports Local Models

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About

What It Is

Jan is an open-source chat application for people who want a ChatGPT replacement that can run locally. According to the website, you can use open-source models on your own machine or connect to cloud models such as GPT, Claude, and others. It is...

What to Know

Jan looks best for users who want to experiment with local LLMs without giving up a familiar chat interface. The crawled content suggests it can also do web search and work with MCP-based tools, but the main product is still a chat client rather...

Key Features

Runs open-source AI models locally on your machine

Connects to cloud models such as GPT and Claude

Downloads as a desktop app from GitHub releases

Supports web search

Supports MCP options

Use Cases

Use local AI models for private chat and experimentation

Switch between local and cloud models from one app

Run a ChatGPT-like assistant without relying only on hosted providers

Agenticness: Guided Assistant

Executes tasks you assign, one step at a time, within narrow domains.

High evidence

Last evaluated: May 22, 2026

Dimension Breakdown

Action Capability

Autonomy

Planning

Adaptation

State & Memory

Reliability

Interoperability

Safety

Operator Sovereignty

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iOS

Slack

Voice

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