Thinko — Streaming Multimodal AI Chat

An AI chat application pairing a Next.js frontend with an asynchronous FastAPI backend. It supports streaming responses, text and image inputs, attachments, model selection, conversation history, and artifact-oriented interactions. The frontend uses Vercel AI SDK, NextAuth, SWR, and Monaco. The backend documents SSE and WebSocket streaming and tool calling. Advanced RAG and LangChain workflows are described as extension points rather than completed integrations.