Sohu Tech Products

Feb 25, 2026 · Frontend Development

How Open WebUI Builds a Production‑Grade AI Chat UI with Svelte

This article dissects the open‑source Open WebUI project, explaining its three‑layer architecture, key Svelte components, streaming rendering pipeline, message‑tree data model, state management, RAG integration, and plugin system, while offering practical optimization tips for building a performant production‑level AI chat interface.