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The UX of ChatGPT in your own app

Open-source React toolkit for production AI chat experiences.

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Combinator

Shadcn

ChatGPT

Claude

Grok

Perplexity

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Everything you need to ship AI chat

Production-ready components and state management.

Instant Chat UI

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

State Management

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

High Performance

Optimized rendering and minimal bundle size for responsive streaming.

Works Everywhere

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

and teams everywhere

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

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

assistant-ui powered by LangGraph! It is awesome.

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

Conversations and streaming AI output are powered by @assistantui. It renders the chat interface and stores threads in Assistant UI Cloud so sessions persist across refreshes and context builds over time.

@assistantui is an open-source TypeScript/React library for AI chat. It brings a ChatGPT-like UI directly into your app.

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

assistant-ui… Could save days of UI work.

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

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

assistant-ui goated 🐐🐐

React chat ui so you can focus on your agent logic. Can't wait to try it.

We just added Assistant UI support to VoltAgent. Streaming, tools, memory all work out of the box.

Build once. Ready for production.

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