Open Source ChatGPT Alternatives

Quivr is a retrieval-augmented generation platform designed to transform raw documents into searchable knowledge bases. It functions as a centralized environment where users can ingest files, index them into vector databases, and interact with language models to receive contextually relevant, data-backed responses. The platform distinguishes itself through an agentic workflow orchestrator that sequences retrieval tasks, tool execution, and model interactions to resolve complex, multi-step queries. This engine is entirely configuration-driven, allowing users to define document ingestion, chunk

NextChat is a self-hosted web application that provides a unified interface for interacting with multiple large language models. It functions as a conversational platform where users can manage and switch between diverse AI providers through configurable API backends, maintaining full control over their data and infrastructure. The platform features a persistent session layer designed to handle long-running dialogues by managing message history and context. It distinguishes itself through a structured prompt engineering environment that allows for the development and application of templates

LibreChat is an artificial intelligence orchestration platform that provides a unified interface for interacting with multiple language models. It functions as a centralized workspace where users can switch between different intelligence engines, manage complex conversational workflows, and maintain persistent memory across sessions through a vector-database-backed storage system. The platform distinguishes itself through an extensible agent framework that supports autonomous task execution and the integration of external tools. It features a secure, containerized environment for executing co

Onyx is an enterprise-grade AI platform designed for knowledge management, search, and autonomous agent orchestration. It functions as a centralized system that aggregates unstructured organizational data, enabling secure, context-aware retrieval and interaction across internal documents and communication history. By integrating retrieval-augmented generation with multi-model orchestration, the platform provides a unified interface for teams to query internal knowledge bases and execute complex, multi-step business processes. The platform distinguishes itself through a focus on private infras

Open WebUI is a self-hosted, web-based platform designed for interacting with local and remote artificial intelligence models. It functions as a unified interface and orchestration suite, enabling users to build, deploy, and manage specialized AI agents equipped with custom instructions, external tool access, and private knowledge bases. The platform distinguishes itself through a modular architecture that supports complex AI workflows. It features a plugin-based framework for custom logic and pipeline-based request processing, allowing developers to filter or transform data streams before th

Danswer is an LLM application framework and RAG engine that provides a self-hosted interface for connecting large language models to private data. It serves as an enterprise AI chat interface and agent orchestrator, enabling the creation of specialized assistants with custom instructions and knowledge bases. The platform differentiates itself through an observability dashboard for tracking query history and token consumption, as well as a white-labeled interface for customized branding. It includes a multi-step research workflow for producing long-form reports and a sandboxed environment for

This project is a self-hosted large language model chat interface and AI model aggregator. It provides a unified web environment for interacting with multiple AI providers and local models, acting as a provider-agnostic API gateway to standardize requests across different endpoints. The platform functions as an agentic AI framework and generative UI workspace, enabling the construction of specialized assistants with custom instructions and subagents. It features a sandboxed code interpreter for secure execution of multiple programming languages and a generative UI system that renders interact

This project is a self-hosted web interface and desktop application designed for interacting with language models. It provides a private platform for managing conversational sessions, allowing users to connect to external AI services while maintaining control over their interaction history and configuration settings. The application distinguishes itself by offering a unified interface that supports multimodal inputs and outputs, including voice interaction processing and generative image creation. It secures sensitive credentials by routing requests through a backend proxy and ensures data pr

Chatbot-ui is a self-hosted AI dashboard and LLM chat interface that serves as a centralized hub for interacting with multiple artificial intelligence providers. It functions as a multi-provider AI client and model orchestrator, allowing users to send prompts and receive responses from various large language models through a unified conversational interface. The project enables multi-model AI chat within a single workspace, allowing for the comparison of outputs and capabilities across different backends. It provides a private frontend for AI workspace management, where users can organize cha

Khoj is a self-hosted artificial intelligence platform designed for personal knowledge management and semantic information retrieval. It functions as a private assistant that indexes your local documents, notes, and external workspaces, allowing you to interact with your data through natural language queries and conversational chat. By maintaining a local-first architecture, the system ensures that your information remains under your control while providing context-aware responses grounded in your personal knowledge base. The platform distinguishes itself through a modular, cross-platform int

SillyTavern is a comprehensive interface and orchestration platform designed for immersive AI roleplay and interactive chat experiences. It functions as a unified gateway that connects users to a wide array of local and cloud-based large language models, providing a centralized environment to manage complex character personas, narrative context, and model-driven interactions. The platform distinguishes itself through its advanced prompt engineering and automation capabilities. It utilizes a sophisticated macro-based templating engine and vector-database retrieval to dynamically inject lore, c

DeepReasoning is a self-hosted AI gateway and chat interface that provides an LLM inference API. It functions as a bridge that merges reasoning traces from DeepSeek R1 with the generative capabilities of Claude models to facilitate complex problem solving. The system is delivered as a dockerized application, allowing for deployment on private infrastructure. This architecture enables private LLM inference and secure local management of API keys and authentication tokens on user-controlled hardware. The project covers multi-model orchestration by combining chain-of-thought reasoning and gener

Serge is a self-hosted web chat interface for running large language models locally using the llama.cpp inference engine. It loads GGUF-format model files directly on your own machine, removing the need for internet connectivity or external API keys, and streams responses to the browser in real time via WebSocket connections. The project is packaged for containerized deployment using Docker and Docker Compose, with a Traefik reverse proxy that handles HTTP and WebSocket routing along with automatic TLS certificate management. Ready-made Kubernetes manifests are also provided, enabling deploym

Chatbox is a cross-platform desktop application that provides a unified interface for interacting with a wide range of artificial intelligence models. It functions as a model-agnostic client, allowing users to connect to various third-party AI providers or execute open-source models directly on their own hardware. By centralizing these diverse services into a single workspace, the application enables users to manage multiple chat sessions, adjust model parameters, and switch between different AI backends with ease. The project distinguishes itself through a local-first architecture that prior

wukong-robot is an open-source, Chinese-language voice assistant platform that integrates ChatGPT for multi-turn conversational AI. It is built around a plugin-based smart speaker framework, combining offline wake word detection with local speech synthesis to enable hands-free, voice-controlled interactions without requiring a constant internet connection. The platform distinguishes itself through its modular architecture, supporting custom wake word training via the command line and a plugin system that routes user intents using regular expressions for extensible functionality. It offers mul

Jan is a desktop application that functions as a local artificial intelligence model runtime and an open-standard API server. It enables the execution of large language models directly on local hardware, ensuring that data remains private and accessible offline while providing a unified interface for managing model weights and inference runtimes. The platform distinguishes itself by offering a modular inference backend that allows users to swap execution engines based on hardware compatibility and performance needs. It acts as a cross-platform orchestrator, providing the ability to switch bet

ChatGPT-Next-Web is a cross-platform web interface and frontend for interacting with large language models. It functions as a self-hosted client that allows users to connect to various AI model providers through a unified chat interface compatible with web browsers and desktop operating systems. The project includes a prompt template manager for creating and organizing reusable masks to standardize interactions. It supports self-hosting on private clouds to maintain data security and provides a centralized administrative panel for managing API resources and member access permissions. The app

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Rag-stack is an enterprise knowledge retrieval system designed to deploy private generative artificial intelligence environments. It functions as a retrieval-augmented generation stack, orchestrating the connection between internal document repositories and open-source language models to enable natural language querying of private organizational data. The platform distinguishes itself by providing a complete infrastructure for private large language model hosting and vector database management. By utilizing infrastructure-as-code provisioning and containerized microservices, it allows organiz