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Bibliographic Details
Main Authors: Liu, Yilun, Zhao, Chunguang, Piao, Mengyao, Miao, Lingqi, Tao, Shimin, He, Minggui, Liu, Chenxin, Zhang, Li, Ma, Hongxia, Guo, Jiaxin, Liu, Chen, Deng, Liqun, Wei, Jiansheng, Meng, Xiaojun, Du, Fanyi, Wei, Daimeng, Xiao, Yanghua
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.20225
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Table of Contents:
  • Evaluating the multilingual and multicultural capabilities of Large Language Models (LLMs) is essential for their global utility. However, current benchmarks face three critical limitations: (1) fragmented evaluation dimensions that often neglect deep cultural nuances; (2) insufficient language coverage in subjective tasks relying on low-quality machine translation; and (3) shallow analysis that lacks diagnostic depth beyond simple rankings. To address these, we introduce GaoYao, a comprehensive benchmark with 182.3k samples, 26 languages and 51 nations/areas. First, GaoYao proposes a unified framework categorizing evaluation tasks into three cultural layers (General Multilingual, Cross-cultural, Monocultural) and nine cognitive sub-layers. Second, we achieve native-quality expansion by leveraging experts to rigorously localize subjective benchmarks into 19 languages and synthesizing cross-cultural test sets for 34 cultures, surpassing prior coverage by up to 111%. Third, we conduct an in-depth diagnostic analysis on 20+ flagship and compact LLMs. Our findings reveal significant geographical performance disparities and distinct gaps between tasks, offering a reliable map for future work. We release the benchmark (https://github.com/lunyiliu/GaoYao).