Coliseo

Head-to-Head Startup Ranking & Discovery

a

assistant-ui

AI · US · Early-stage

assistant-ui.com ↗

assistant-ui helps frontend developers add AI chat to their apps. Our product is used by several dozen companies, like LangChain, Stack AI, Browser Use, and Athena Intelligence. We're building an open source Typescript/React library and a backend as a service, with first class integrations into popular agent frameworks like LangGraph and Vercel AI SDK.

Ratings are live Elo scores from head-to-head crowd votes — opinion, not fact or financial advice. How it works →