Pinzhi Huang
2026
Evaluating Cross-Lingual Behavior and Consistency of Multimodal Large Language Models
Hao Wang | Pinzhi Huang | Daisuke Kawahara
Proceedings of the 6th Workshop on Trustworthy NLP (TrustNLP 2026)
Hao Wang | Pinzhi Huang | Daisuke Kawahara
Proceedings of the 6th Workshop on Trustworthy NLP (TrustNLP 2026)
The rapid evolution of multimodal large language models (MLLMs) has significantly enhanced their real-world applications.However, achieving consistent performance across languages, especially when integrating cultural knowledge, remains a significant challenge.To better assess this issue, we introduce two new benchmarks: KnowRecall and VisRecall, which evaluate cross-lingual consistency in MLLMs.KnowRecall is a visual question answering benchmark designed to measure factual knowledge consistency in 15 languages, focusing on cultural and historical questions about global landmarks.VisRecall assesses visual memory consistency by asking models to describe landmark appearances in 9 languages without access to images.Experimental results reveal that state-of-the-art MLLMs, including proprietary ones, still struggle to achieve cross-lingual consistency.This underscores the need for more robust approaches that produce truly multilingual and culturally aware models.