Frontend UI Library
9.5k 2026-04-18
assistant-ui/assistant-ui
A TypeScript/React library for rapidly building production-grade AI chat user experiences with extensive customization and backend integration.
Core Features
Composable primitives for flexible UI customization (inspired by shadcn/ui).
Handles complex chat UX features like streaming, auto-scrolling, and accessibility out-of-the-box.
Broad compatibility with various AI backends and models (e.g., AI SDK, LangGraph, OpenAI, Anthropic).
Production-ready features including markdown, code highlighting, attachments, and voice input.
Optional managed chat history and analytics via Assistant Cloud for enterprise needs.
Quick Start
npx assistant-ui createDetailed Introduction
Assistant-UI is an open-source TypeScript/React library designed to streamline the development of sophisticated AI chat interfaces. It provides battle-tested, composable UI primitives that offer the UX quality of ChatGPT, enabling developers to quickly build highly customizable and production-ready AI assistants. With built-in support for streaming, accessibility, and a wide range of AI models and backends, it significantly reduces development time while ensuring a great developer and user experience, making it ideal for enterprise-grade applications.