Jan.ai Has a Free API: Open-Source ChatGPT Alternative Running 100% Offline

Jan is an open-source ChatGPT alternative that runs 100% offline on your computer. It provides an OpenAI-compatible API, a beautiful chat interface, and supports dozens of open-source models. What Is Jan? Jan is a desktop application that turns your computer into an AI server. It downloads and runs LLMs locally with full privacy — no data ever leaves your machine. It is fully open-source (AGPLv3) and works on Windows, Mac, and Linux. Key Features: 100% offline, no cloud dependency OpenAI-compatible API server Beautiful chat UI with threads Supports GGUF models from Hugging Face GPU acceleration (CUDA, Metal, Vulkan) Extension system for plugins Local RAG with file uploads Quick Start Download Jan from jan.ai Open the app and go to Model Hub Download a model (e.g., Llama 3.2, Mistral, Phi-3) Start chatting or enable the API server Jan API: OpenAI-Compatible Local Server Jan runs a local API server on port 1337 that is fully compatible with the OpenAI API: from openai import OpenAI clien