KoALa-Bench: Evaluating Large Audio Language Models on Korean Speech Understanding and Faithfulness

Jinyoung Kim, Hyeongsoo Lim, Eun Seo Seo, Min Ho Jang, Keunwoo Choi, Seungyoun Shin, Ji Won Yoon


Abstract
Recent advances in large audio language models (LALMs) have enabled multilingual speech understanding. However, benchmarks for evaluating LALMs remain scarce for non-English languages, with Korean being one such underexplored case. In this paper, we introduce **KoALa-Bench**, a comprehensive benchmark for evaluating Korean speech understanding and speech faithfulness of LALMs. In particular, KoALa-Bench comprises six tasks. Four tasks evaluate fundamental speech understanding capabilities, including automatic speech recognition, speech translation, speech question answering, and speech instruction following, while the remaining two tasks evaluate speech faithfulness, motivated by our observation that several LALMs often fail to fully leverage the speech modality. Furthermore, to reflect Korea-specific knowledge, our benchmark incorporates listening questions from the Korean college scholastic ability test as well as content covering Korean cultural domains. We conduct extensive experiments across six models, including both white-box and black-box ones. Our benchmark, evaluation code, and leaderboard are publicly available at [https://ksbench.github.io/Koala-Bench/](https://ksbench.github.io/Koala-Bench/).
Anthology ID:
2026.emnlp-main.296
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
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Pages:
6807–6844
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URL:
https://aclanthology.org/2026.emnlp-main.296/
DOI:
Bibkey:
Cite (ACL):
Jinyoung Kim, Hyeongsoo Lim, Eun Seo Seo, Min Ho Jang, Keunwoo Choi, Seungyoun Shin, and Ji Won Yoon. 2026. KoALa-Bench: Evaluating Large Audio Language Models on Korean Speech Understanding and Faithfulness. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 6807–6844, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
KoALa-Bench: Evaluating Large Audio Language Models on Korean Speech Understanding and Faithfulness (Kim et al., EMNLP 2026)
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PDF:
https://aclanthology.org/2026.emnlp-main.296.pdf