LookBench: A Live and Holistic Open Benchmark for Fashion Image Retrieval

Fuente: arXiv
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Main Authors: ai, Gensmo., Gao, Chao, Xue, Siqiao, Fu, Jiwen, Gu, Tingyi, Li, Shanshan, Zhou, Fan
Format: Preprint
Published: 2026
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author ai, Gensmo.
Gao, Chao
Xue, Siqiao
Fu, Jiwen
Gu, Tingyi
Li, Shanshan
Zhou, Fan
author_facet ai, Gensmo.
Gao, Chao
Xue, Siqiao
Fu, Jiwen
Gu, Tingyi
Li, Shanshan
Zhou, Fan
contents In this paper, we present LookBench (We use the term "look" to reflect retrieval that mirrors how people shop -- finding the exact item, a close substitute, or a visually consistent alternative.), a live, holistic and challenging benchmark for fashion image retrieval in real e-commerce settings. LookBench includes both recent product images sourced from live websites and AI-generated fashion images, reflecting contemporary trends and use cases. Each test sample is time-stamped and we intend to update the benchmark periodically, enabling contamination-aware evaluation aligned with declared training cutoffs. Grounded in our fine-grained attribute taxonomy, LookBench covers single-item and outfit-level retrieval across. Our experiments reveal that LookBench poses a significant challenge on strong baselines, with many models achieving below $60\%$ Recall@1. Our proprietary model achieves the best performance on LookBench, and we release an open-source counterpart that ranks second, with both models attaining state-of-the-art results on legacy Fashion200K evaluations. LookBench is designed to be updated semi-annually with new test samples and progressively harder task variants, providing a durable measure of progress. We publicly release our leaderboard, dataset, evaluation code, and trained models.
format Preprint
id arxiv_https___arxiv_org_abs_2601_14706
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle LookBench: A Live and Holistic Open Benchmark for Fashion Image Retrieval
ai, Gensmo.
Gao, Chao
Xue, Siqiao
Fu, Jiwen
Gu, Tingyi
Li, Shanshan
Zhou, Fan
Computer Vision and Pattern Recognition
In this paper, we present LookBench (We use the term "look" to reflect retrieval that mirrors how people shop -- finding the exact item, a close substitute, or a visually consistent alternative.), a live, holistic and challenging benchmark for fashion image retrieval in real e-commerce settings. LookBench includes both recent product images sourced from live websites and AI-generated fashion images, reflecting contemporary trends and use cases. Each test sample is time-stamped and we intend to update the benchmark periodically, enabling contamination-aware evaluation aligned with declared training cutoffs. Grounded in our fine-grained attribute taxonomy, LookBench covers single-item and outfit-level retrieval across. Our experiments reveal that LookBench poses a significant challenge on strong baselines, with many models achieving below $60\%$ Recall@1. Our proprietary model achieves the best performance on LookBench, and we release an open-source counterpart that ranks second, with both models attaining state-of-the-art results on legacy Fashion200K evaluations. LookBench is designed to be updated semi-annually with new test samples and progressively harder task variants, providing a durable measure of progress. We publicly release our leaderboard, dataset, evaluation code, and trained models.
title LookBench: A Live and Holistic Open Benchmark for Fashion Image Retrieval
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2601.14706