# janhq/jan

Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.

Repository: https://github.com/janhq/jan
Canonical: https://ross.abutalabs.com/products/jan
Homepage: https://jan.ai/
Language: TypeScript
License: NOASSERTION
License Family: other
Topics: llamacpp, localai, self-hosted, gpt, tauri, chatgpt, llm, open-source
Last push: 2026-08-26T09:51:39+00:00

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 94, longevity 79
- inputs: {"age_days": 1113, "days_push": 7, "days_rel": 41, "gap_med": 14, "n_releases_24m": 40}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 44202, forks 2992 (observed 2026-08-28T04:12:09.261593+00:00)

## What it is
Jan is an open-source desktop application that serves as a ChatGPT alternative, letting users download and run large language models fully offline on their own hardware via llama.cpp and MLX. It includes a model hub, OpenAI-compatible local API server, MCP server support, web search tools, and a companion terminal-based coding agent (Jan Agent).

## Use cases
- run llms offline on my computer
- chatgpt alternative that works without internet
- chat with local models privately
- serve an openai-compatible api from local models
- download and manage local llm models
- run an ai coding agent in the terminal
- self-host ai chat with mcp server support

## When to choose
- you want private, offline LLM usage with full data control
- you need a polished GUI for running local models on Mac, Windows, or Linux
- you want a drop-in local replacement for OpenAI's chat completions API
- you want MCP, web search, and agent features in one desktop app

## When to avoid
- you only want a lightweight CLI or headless inference server without a GUI
- your hardware cannot run local models and you prefer pure cloud APIs
- you need a hosted multi-user chat service for teams

## Facets
- artifact type: application
- maturity: active
- function: llm-inference, chatbot, chat-interface, agent-framework, mcp, http-server, rag
- domain: large-language-models, artificial-intelligence, self-hosted, privacy, cross-platform
- platform: windows, cli
- tags: offline-ai, local-models, llamacpp, openai-compatible-api, chatgpt-alternative, model-hub, tauri-app, ai-agents, macos, linux, desktop, tauri

## Member repositories
- janhq/jan (main) score 93

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:09.261593+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:22:15.416675+00:00, confidence not recorded.
  - readme: https://github.com/janhq/jan (fetched 2026-08-28T04:12:09.261593+00:00, sha dc3a00ef0f05)
  - homepage: https://jan.ai/ (fetched 2026-08-29T07:46:19.402968+00:00, sha 60545b206fd5)
  - site_page: https://www.jan.ai/docs/desktop/quickstart (fetched 2026-08-29T07:46:19.412814+00:00, sha 2373afba1aad)
  - site_page: https://www.jan.ai/docs/agent/quickstart (fetched 2026-08-29T07:46:19.415230+00:00, sha 21e9e948641a)
  - site_page: https://www.jan.ai/docs (fetched 2026-08-29T07:46:19.417596+00:00, sha 973ae11d9859)
  - site_page: https://www.jan.ai/docs/agent (fetched 2026-08-29T07:46:19.424111+00:00, sha 31ff50e76cdd)
  - site_page: https://www.jan.ai/docs/desktop/api-server (fetched 2026-08-29T07:46:19.426064+00:00, sha 5d612eb26595)
  - site_page: https://www.jan.ai/changelog (fetched 2026-08-29T07:46:19.419960+00:00, sha 11d532705d56)
  - site_page: https://www.jan.ai/handbook/who/who-we-are (fetched 2026-08-29T07:46:19.422200+00:00, sha b9de53bc3821)
- Data as of 2026-08-30T08:39:29.467469+00:00.