When Trivia Is Not Trivial: Everyday Knowledge Failures in Multilingual LLMs

Anna Mosolova, Djamé Seddah


Abstract
Quiz rooms, trivia nights, and quiz shows challenge human knowledge across a wide range of topics, from canonical facts to everyday culture. In this paper, we examine whether large language models (LLMs) can perform competitively in such settings, using quiz-style questions to test them on both common and niche topics. We introduce TriviaRoomQA, a multilingual benchmark designed to evaluate everyday, culturally grounded, and long-tail knowledge across 288 topics. The benchmark contains 3,300 parallel multiple-choice questions in six European languages and additional 5,340 French-only questions for a more fine-grained case study. We evaluate 30 open-weight LLMs from European, Asian, and North American providers, covering models from 7 to 70B parameters. We find that models are strong on knowledge-intensive topics such as history, geography, and mathematics, but substantially weaker on everyday popular-culture topics such as celebrities, music, movies, and news. Moreover, model performance varies across languages even for the same underlying questions, suggesting that access to factual knowledge is not always language-independent. In sum, our dataset and experiments demonstrate an important knowledge gap which is not captured by existing academic-based saturated benchmarks.
Anthology ID:
2026.findings-emnlp.2155
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2026
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
Findings
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SIGDAT
Publisher:
Association for Computational Linguistics
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Pages:
46100–46128
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URL:
https://aclanthology.org/2026.findings-emnlp.2155/
DOI:
Bibkey:
Cite (ACL):
Anna Mosolova and Djamé Seddah. 2026. When Trivia Is Not Trivial: Everyday Knowledge Failures in Multilingual LLMs. In Findings of the Association for Computational Linguistics: EMNLP 2026, pages 46100–46128, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
When Trivia Is Not Trivial: Everyday Knowledge Failures in Multilingual LLMs (Mosolova & Seddah, Findings 2026)
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PDF:
https://aclanthology.org/2026.findings-emnlp.2155.pdf