UR-Bench: A Benchmark for Multi-Hop Reasoning over Ultra-High-Resolution Images

arXiv — cs.CVWednesday, January 14, 2026 at 5:00:00 AM
  • The introduction of the Ultra-high-resolution Reasoning Benchmark (UR-Bench) aims to evaluate the reasoning capabilities of multimodal large language models (MLLMs) specifically on ultra-high-resolution images, which have been largely unexplored in existing visual question answering benchmarks. This benchmark features two main categories, Humanistic Scenes and Natural Scenes, with images ranging from hundreds of megapixels to gigapixels, accompanied by structured questions.
  • This development is significant as it addresses a critical gap in the evaluation of MLLMs, allowing researchers to assess how well these models can handle complex visual information and reasoning tasks that go beyond traditional medium-resolution datasets. By providing a structured framework, UR-Bench can enhance the understanding of MLLMs' capabilities in real-world applications.
  • The establishment of UR-Bench reflects a growing trend in AI research to create specialized benchmarks that challenge MLLMs in various contexts, such as urban scenarios and collaborative environments. Similar benchmarks like RoadBench and AirCopBench highlight the importance of fine-grained spatial understanding and collaborative perception, indicating a broader movement towards improving AI's ability to interpret and reason about complex visual data across diverse settings.
— via World Pulse Now AI Editorial System

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