💬 assistant-ui Launches: Open Source Typescript/React Library for AI Chat

💬 assistant-ui recently launched!

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^{"The UX of ChatGPT in your own app, connected to your own AI agents."}

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‍Founded by Simon Farshid‍

Hi everyone! Meet Simon, he's building assistant-ui, an open source Typescript/React library for AI chat.

Hundreds of projects use assistant-ui to build in-app AI assistants, including companies like:

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With >50k+ monthly downloads, assistant-ui is the most popular UI library for AI chat.

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About

Simon has wanted to build his own dev tool company since high school. Last year, he built the first version of assistant-ui because he needed the UX of ChatGPT in his own app. The app he was building didn’t work out, but a few friends asked him about the chat UI. Since then, AI chat has became increasingly popular as a means for delegating tasks to AI agents. Simon's focus is on enabling human <> agent collaboration through better UX and AX (agent experience).

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Getting Started

You can get started by running `npx assistant-ui create` (new project) or `npx assistant-ui init` (existing project) in your terminal.

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Features

• Pre-built components, fully customizable
• Connects to your backend
  • assistant-ui has first class integration for AI SDK and LangGraph or build your own
• Generative UI: Map LLM tool calls and JSONs to custom UI components
• Frontend Tool Calls: Let LLMs take action in your frontend app
• Human Tool Calls: Human approvals and input collection
• Chat history and analytics via assistant-cloud (the hosted offering)

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Customization

The API of assistant-ui is inspired by libraries like Radix UI and cmdk. Instead of a single monolithic chat component, assistant-ui gives you composable primitives and a great starter configuration. You have full control over the look and feel of every pixel, while leaving auto-scrolling, LLM streaming and accessibility to assistant-ui.

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Sample customization to make a perplexity lookalike:

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Demo Video

Demo Video

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Learn More

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^{🌐 Visit www.assistant-ui.com to learn more.}

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^{👉 Check out example demos.}

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^{⭐ Star 💬 assistant-ui on GitHub.}

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^{#️⃣ Join 💬 assistant-ui's Discord.}

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^{📅 Book a sales call.}

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^{‍‍👣 Follow 💬 assistant-ui on LinkedIn & X.}

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