assistant-ui offers headless React primitives and pre-built components for building AI chat interfaces, plus an optional managed backend service called Assistant Cloud that handles thread persistence, chat history, and user authorization. The library supports multiple runtimes and integrates with frameworks such as Vercel AI SDK, LangGraph, LangChain, Mastra, Cloudflare Agents, Google ADK, and OpenCode.
The project serves React developers and teams building AI chat apps, copilots, assistants, and agent interfaces. It competes in the AI chat UI component and developer-tooling space, and monetizes through usage-based Assistant Cloud plans tied to monthly active users.
Quick Facts
When was assistant-ui's last funding round?
assistant-ui's most recent funding round was for $500k (USD) in January 2025.
How much disclosed funding has assistant-ui raised?
As of Jan 1, 2025, assistant-ui has disclosed funding of $500k (USD).