An open model and desktop app that operates a computer through its interface. Built by ByteDance.
Others in browser and computer use
Common questions
Is UI-TARS free to use?
UI-TARS is open source and free to run yourself. You still pay whichever model provider you point it at, and this tutorial is free with no signup.
Do I need to know Python to use UI-TARS?
Basic Python is enough. Functions, dictionaries and imports cover most of what UI-TARS asks of you.
When should I not use UI-TARS?
When something else in browser and computer use fits the job better. The others in that group are listed below.
Lessons for UI-TARS are being written. Meanwhile the APIs for AI tutorial covers the same ground: state, tools, loops, memory and human approval. Most of it carries straight over.
Start the APIs for AI tutorial →