BTL-UI: Blink-Think-Link Reasoning Model for GUI Agent

Xin Du (Waseda University) · Shaokang Wang (Peking University) · Shaojie Zhang (University of Manchester) · Ruoceng Zhang (Xiaomi Corporation) · Pei Fu (Xiaomi Corporation) · Jiahui Yang (Xiaomi Corporation) · ShiqiCui (Xiaomi Corporation) · Bin Qin (Xiaomi Corporation) · Ying Huang (Xiaomi Corporation) · Zhenbo Luo (Xiaomi Corporation) · Jian Luan (Xiaomi Corporation)
ai-driven interactionautomated annotation pipelinebiologically plausible phasesblink data optimizationblink–think–link frameworkcognitive planningcognitive process modelingdynamic interaction tasksexecutable commands generationgui agent modelhuman-gui communicationmultimodal large language modelsrapid detectionreinforcement fine-tuningrule-based reward mechanismstatic gui understanding

In the field of AI-driven human-GUI interaction automation, while rapid advances in multimodal large language models and reinforcement fine-tuning techniques have yielded remarkable progress, a fundamental challenge persists: their interaction logic significantly deviates from natural human-GUI communication patterns. To address this gap, we propose Blink–Think–Link (BTL), a brain-inspired framework for human-GUI interaction that mimics the human cognitive process between users and graphical interfaces. The system decomposes interactions into three biologically plausible phases: (1) \textbf{Blink} - rapid detection and attention to relevant screen areas, analogous to saccadic eye movements; (2) \textbf{Think} - higher-level reasoning and decision-making, mirroring cognitive planning; and (3) \textbf{Link} - generation of executable commands for precise motor control, emulating human action selection mechanisms. Additionally, we introduce two key technical innovations for BTL framework: (1) Blink Data Generation - an automated annotation pipeline specifically optimized for blink data, and (2) {BTL Reward – the first rule-based reward mechanism that enables reinforcement learning driven by both process and outcome.} Building upon this framework, we develop a GUI agent model named BTL-UI, which demonstrates competitive performance across both static GUI understanding and dynamic interaction tasks in comprehensive benchmarks. These results provide conclusive empirical validation of the framework's efficacy in developing advanced GUI agents.