is an open-source, self-hosted AI platform with a versatile feature set. It supports OpenAI-compatible APIs and integrates with providers like OpenRouter and , among others. It can run entirely offline by connecting to local or self-hosted models via Ollama. Open WebUI includes a built-in capability for RAG, allowing users to interact with local and web-based documents in a chat-driven experience. It offers granular RBAC controls, enabling different models and platform capabilities for different user groups. The platform is extensible through ¡ª Python-based building blocks that customize and enhance its capabilities. Another key feature is , which includes a model arena for side-by-side comparisons of LLMs on specific tasks. Open WebUI can be deployed at various scales ¡ª as a personal AI assistant, a team collaboration assistant or an enterprise-grade AI platform.
