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Assistant UI

Assistant UI is an open-source TypeScript/React library designed for rapidly building production-grade AI chat interfaces with ChatGPT-like experiences.

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About Template

This comprehensive UI toolkit provides fully composable primitives built on Radix UI with built-in features like message streaming, automatic scrolling, typing indicators, and complete accessibility support through WAI-ARIA compliance. The library supports integration with major AI providers including OpenAI, Anthropic Claude, Google Gemini, and any backend compatible with Vercel AI SDK, offering maximum flexibility for AI application development. With enterprise-ready components, developers get features like markdown rendering, code syntax highlighting, file attachments, voice input support, conversation threading, and customizable themes that work seamlessly with shadcn/ui styling.

The composable architecture allows fine-grained control over every aspect of the chat interface, from message bubbles and input areas to suggestion chips and action buttons, while maintaining excellent performance and developer experience. Perfect for building AI assistants, customer support chatbots, documentation helpers, or any conversational AI application, Assistant UI eliminates weeks of UI development by providing battle-tested components that handle the complexity of real-time streaming, state management, and user interactions, allowing teams to focus on AI logic rather than interface implementation.

Free, open source, and ready to ship.

Clone the repo, install dependencies, and start customising — every Assistant UI file is MIT-licensed and yours to keep.

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