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Main Authors: Lin, Ling, Bai, Yang, Su, Heng, Zhu, Congcong, Wang, Yaoxing, Zhou, Yang, Fu, Huazhu, Chen, Jingrun
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2602.18094
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author Lin, Ling
Bai, Yang
Su, Heng
Zhu, Congcong
Wang, Yaoxing
Zhou, Yang
Fu, Huazhu
Chen, Jingrun
author_facet Lin, Ling
Bai, Yang
Su, Heng
Zhu, Congcong
Wang, Yaoxing
Zhou, Yang
Fu, Huazhu
Chen, Jingrun
contents Existing Visual-Language Models (VLMs) have achieved significant progress by being trained on massive-scale datasets, typically under the assumption that data are independent and identically distributed (IID). However, in real-world scenarios, it is often impractical to expect that all data processed by an AI system satisfy this assumption. Furthermore, failure to appropriately handle out-of-distribution (OOD) objects may introduce safety risks in real-world applications (e.g., autonomous driving or medical assistance). Unfortunately, current research has not yet provided valid benchmarks that can comprehensively assess the performance of VLMs in response to OOD data. Therefore, we propose OODBench, a predominantly automated method with minimal human verification, for constructing new benchmarks and evaluating the ability of VLMs to process OOD data. OODBench contains 40K instance-level OOD instance-category pairs, and we show that current VLMs still exhibit notable performance degradation on OODBench, even when the underlying image categories are common. In addition, we propose a reliable automated assessment metric that employs a Basic-to-Advanced Progression of prompted questions to assess the impact of OOD data on questions of varying difficulty more fully. Lastly, we summarize substantial findings and insights to facilitate future research in the acquisition and evaluation of OOD data.
format Preprint
id arxiv_https___arxiv_org_abs_2602_18094
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle OODBench: Out-of-Distribution Benchmark for Large Vision-Language Models
Lin, Ling
Bai, Yang
Su, Heng
Zhu, Congcong
Wang, Yaoxing
Zhou, Yang
Fu, Huazhu
Chen, Jingrun
Computer Vision and Pattern Recognition
Artificial Intelligence
Databases
Existing Visual-Language Models (VLMs) have achieved significant progress by being trained on massive-scale datasets, typically under the assumption that data are independent and identically distributed (IID). However, in real-world scenarios, it is often impractical to expect that all data processed by an AI system satisfy this assumption. Furthermore, failure to appropriately handle out-of-distribution (OOD) objects may introduce safety risks in real-world applications (e.g., autonomous driving or medical assistance). Unfortunately, current research has not yet provided valid benchmarks that can comprehensively assess the performance of VLMs in response to OOD data. Therefore, we propose OODBench, a predominantly automated method with minimal human verification, for constructing new benchmarks and evaluating the ability of VLMs to process OOD data. OODBench contains 40K instance-level OOD instance-category pairs, and we show that current VLMs still exhibit notable performance degradation on OODBench, even when the underlying image categories are common. In addition, we propose a reliable automated assessment metric that employs a Basic-to-Advanced Progression of prompted questions to assess the impact of OOD data on questions of varying difficulty more fully. Lastly, we summarize substantial findings and insights to facilitate future research in the acquisition and evaluation of OOD data.
title OODBench: Out-of-Distribution Benchmark for Large Vision-Language Models
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Databases
url https://arxiv.org/abs/2602.18094