Sure, ChatGPT is awesome.

But have you considered these open source alternatives?

They are free, self-hostable and community-driven.

Check by yourself: Open WebUI , Ollama , Onyx , LobeChat , AnythingLLM , Khoj , LiteLLM .

So is Open WebUI

A user-friendly interface for AI chat
★ 111.1K LLM AI RAG Chatbot License: MIT
An extensible, feature-rich, and user-friendly self-hosted WebUI designed to operate entirely offline. It supports various LLM runners, including Ollama and OpenAI-compatible APIs.
So is Ollama

The easiest way to get up and running with large language models
★ 153.1K LLM AI License: BSD-3-Clause
Ollama is a platform that makes it easy to get up and running with large language models. It provides a simple API to interact with the models, and you can use it to generate text, answer questions, and more.
So is Onyx

Gelişmiş geri alma yetenekleri ile açık kaynak kurumsal arama ve AI asistanı
★ 14.5K AI RAG LLM License: MIT
Onyx (eski adıyla Danswer), şirketinizin belgelerine, uygulamalarına ve kişilerine bağlanan açık kaynak kurumsal arama ve AI asistan platformudur.
So is LobeChat

Open-source, modern-design AI chat framework
★ 65.9K LLM AI RAG Chatbot License: Apache-2.0 (with a twist)
An open-source, modern-design ChatGPT/LLMs UI/Framework that supports speech-synthesis, multi-modal, and extensible (function call) plugin system.
So is AnythingLLM

The all-in-one AI app you were looking for
★ 49.4K LLM AI RAG Chatbot License: MIT
Turn any document, resource, or piece of content into context that any LLM can use as references during chatting.
So is Khoj

Your AI second brain
★ 31.2K LLM AI RAG Chatbot License: AGPL-3.0
Khoj is a personal AI app to extend your capabilities. It smoothly scales up from an on-device personal AI to a cloud-scale enterprise AI.
So is LiteLLM

Proxy Server to call 100+ LLMs in the OpenAI format
★ 29.3K AI LLM License: MIT
Call all LLM APIs using the OpenAI format [Bedrock, Huggingface, VertexAI, TogetherAI, Azure, OpenAI, Groq etc.]