UX of ChatGPT in your own app

Open-source React toolkit for production AI chat experiences.

Combinator

Shadcn

ChatGPT

Claude

Perplexity

Hello there!

How can I help you today?

Production-ready components and state management.

Drop in ChatGPT-style UX with theming and sensible defaults.

Streaming, interruptions, retries, and multi-turn conversations.

Optimized rendering and minimal bundle size for responsive streaming.

Vercel AI SDK, LangChain, or any LLM provider. React-based.

and teams everywhere

Build stateful conversational AI agents with LangGraph and assistant-ui.

Pleasure to work with Simon… bring streaming, gen UI, and human-in-the-loop with LangGraph Cloud + assistant-ui.

A huge shoutout to @simonfarshid for the cool stuff he makes at assistant-ui

assistant-ui powered by LangGraph! It is awesome.

assistant-ui… Could save days of UI work.

A great set of pre-built react components for building chatbot experiences.

My favorite financial assistant is assistant-ui… fully open source… powerful starter tools… integrates with LangSmith and LangGraph.

Stop building chat interfaces yourself… Just install assistant-ui and you’re done.

assistant-ui goated 🐐🐐

Build once. Ready for production.