Components · Free
assistant-ui
Open-source React primitives for AI chat interfaces.

The chat UI you shouldn’t rebuild: threads, composers, tool calls, markdown. Open source, made to sit on top of your model, not theirs.
Install
npx shadcn@latest add @assistant-ui/thread
See assistant-ui.com for the current CLI.
On the site
- Chat and agent UI primitives
- React, open source
- Free