You searched a paid product
ChatGPT Plus does 3 jobs: chat assistant, chat with your documents, web search answers. Most projects replace one or two of them, so pick the job you actually need.
Open-source alternatives to ChatGPT Plus that run locally, allow commercial use and need no paid API include AnythingLLM (chat assistant and chat with your documents; MIT; runs on CPU). LibreChat and Open WebUI cover all 3 ChatGPT Plus jobs.
All-in-one desktop or Docker app to chat with your documents using local or cloud LLMs, with agents and a built-in vector database.
Desktop app that downloads and runs LLMs from Hugging Face offline, with optional cloud model connections and a local OpenAI-compatible API.
Self-hosted ChatGPT-style interface for many AI providers, with agents, MCP, file chat, web search and multi-user auth.
Self-hostable AI chat and agent workspace (formerly LobeChat) with multi-provider models, plugins and a desktop app.
Self-hosted multi-user, multi-agent AI assistant with a web dashboard, desktop apps, IM channels, document RAG and Ollama or API models.
Local model runner that downloads and serves open LLMs (Gemma, Qwen, DeepSeek, gpt-oss and more) with a CLI and local API.
Self-hosted AI chat platform for Ollama and OpenAI-compatible APIs, with RAG over your files, web search and multi-user admin.
Self-hosted LLM knowledge platform from Tencent that turns your documents into cited RAG Q&A, a reasoning agent and an auto-maintained wiki.
No project meets all of your requirements. The list below shows what you'd need to relax.
We hid them because something is missing, unknown or conflicting. Here's what.
Yes. Open WebUI, LibreChat, AnythingLLM, Octop and Ollama are free to download and run on your own computer without paid API keys. Open WebUI and LibreChat cover every job we list for ChatGPT Plus; the others cover only part of it, so check which job you need.
Yes, with Ollama (MIT), Open WebUI (Custom licence) and AnythingLLM (MIT). Check the hardware notes and licence conditions on each page before you start.
Yes, with Open WebUI (Custom licence), AnythingLLM (MIT) and Octop (MIT). Check the hardware notes and licence conditions on each page before you start.
Confirmed: AnythingLLM, Jan, LibreChat, Octop, Ollama and WeKnora. With conditions: LobeHub (formerly LobeChat) and Open WebUI. This is not legal advice; read each licence.
LibreChat and Open WebUI cover every job we list for ChatGPT Plus.