--- license: apache-2.0 --- ## Introduction This repository contains the efficient GUI grounding model, **UI-S1-7B**, presented in [UI-S1: Advancing GUI Automation via Semi-online Reinforcement Learning](https://huggingface.co/papers/2509.11543). Project page: https://github.com/X-PLUG/MobileAgent/tree/main/UI-S1