Fan Sicheng （范思诚）
Master's Student · Fudan University
AI Research Intern @ Meituan LongCat · Technical Lead @ WebAgentLab
Master's student at Fudan University, researching GUI Agents/Computer-Use Agents and Reinforcement Learning. Serving as Technical Lead at WebAgentLab and AI Research Intern at LongCat Group, Meituan. My work focuses on building autonomous agents that can operate graphical interfaces. Publications at CVPR and ICLR.
Publications
ICLR 2026
WebFactory: Automated Compression of Foundational Language Intelligence into Grounded Web Agents
Sicheng Fan, Qingyun Shi, Shengze Xu, Shengbo Cai, Tieyong Zeng, Li Ling, Yanyi Shang, Dehan Kong
International Conference on Learning Representations, 2026
GUI AgentReinforcement LearningLLMSynthetic Data
Recent Posts
Feb 2026（CVPR 2026 一作）WebChain：为什么 GUI Agent 其实还没有真正学会“用浏览器”Jan 2026（ICLR 2026 一作）WebFactory：让语言模型学会操作网页的一种自动化训练方式Dec 2025The Inflection Point of GUI Agent: From Model Worship to the Era of Data and Systems
View all postsNews
Apr 2026Joined Meituan LongCat Group as AI Research Intern
Feb 2026Paper "WebChain" accepted at CVPR 2026 (first author)
Jan 2026Paper "WebFactory" accepted at ICLR 2026 (first author)
Dec 2025Launched personal academic website
2025Became Technical Lead at WebAgentLab community
Sep 2024Enrolled in Master's program at Fudan University
Jun 2024Joined iMeanAI for GUI Agent research
Sep 2020Enrolled at Fudan University (undergraduate)
Research Interests
GUI AgentComputer-Use AgentReinforcement LearningLLM TrainingLLM Fine-tuningWorld Model