Poster Fri, Apr 24, 2026 • 11:15 AM – 1:45 PM PDT Pavilion 4 P4-#5001

ScaleCUA: Scaling Open-Source Computer Use Agents with Cross-Platform Data

Zhaoyang Liu ⋅ JingJing Xie ⋅ Zichen Ding ⋅ Zehao Li ⋅ Bowen Yang ⋅ Zhenyu Wu ⋅ Xuehui Wang ⋅ Qiushi Sun ⋅ Shi Liu ⋅ Weiyun Wang ⋅ Shenglong Ye ⋅ Qingyun Li ⋅ Zeyue Tian ⋅ Gen Luo ⋅ Xiangyu Yue ⋅ Biqing Qi ⋅ Kai Chen ⋅ Bowen Zhou ⋅ Yu Qiao ⋅ Qifeng Chen ⋅ Wenhai Wang

Abstract

Vision-Language Models (VLMs) have enabled computer use agents (CUAs) that operate GUIs autonomously, showing great potential, yet progress is limited by the lack of large-scale, open-source computer use data and foundation models. In this work, we introduce ScaleCUA, a step toward scaling open-source CUAs. It offers a large-scale dataset spanning 6 operating systems and 3 task domains, built via a closed-loop pipeline uniting automated agents with human experts. Trained on this scaled-up data, ScaleCUA can operate seamlessly across platforms. Specifically, it delivers strong gains over baselines (+26.6 on WebArena-Lite-v2, +10.7 on ScreenSpot-Pro) and sets new state-of-the-art results (94.4% on MMBench-GUI L1-Hard, 60.6% on OSWorld-G, 47.4% on WebArena-Lite-v2). These findings underscore the power of data-driven scaling for general-purpose computer use agents. We will release data, models, and code to advance future research.