HugAi is a web-based chat application built with Spring Boot and Vue that connects to multiple AI model providers for conversational AI. It supports text chat via OpenAI GPT models, Baidu Wenxin Yiyan, and iFlytek Spark with streaming SSE responses. It also integrates Stable Diffusion and Midjourney APIs for AI image generation. The project includes backend and frontend source code, Redis caching via Redisson, and MinIO for storage, providing a self-hosted alternative to commercial AI chat services.