Irish-BLiMP: A Linguistic Benchmark for Evaluating Human and Language Model Performance in a Low-Resource Setting

Fuente: arXiv
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Auteurs principaux: McGiff, Josh, Tran, Khanh-Tung, Mulcahy, William, Luinín, Dáibhidh Ó, Dalzell, Jake, Bhroin, Róisín Ní, Burke, Adam, O'Sullivan, Barry, Nguyen, Hoang D., Nikolov, Nikola S.
Format: Preprint
Publié: 2025
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author McGiff, Josh
Tran, Khanh-Tung
Mulcahy, William
Luinín, Dáibhidh Ó
Dalzell, Jake
Bhroin, Róisín Ní
Burke, Adam
O'Sullivan, Barry
Nguyen, Hoang D.
Nikolov, Nikola S.
author_facet McGiff, Josh
Tran, Khanh-Tung
Mulcahy, William
Luinín, Dáibhidh Ó
Dalzell, Jake
Bhroin, Róisín Ní
Burke, Adam
O'Sullivan, Barry
Nguyen, Hoang D.
Nikolov, Nikola S.
contents We present Irish-BLiMP (Irish Benchmark of Linguistic Minimal Pairs), the first dataset and framework designed for fine-grained evaluation of linguistic competence in the Irish language, an endangered language. Drawing on a variety of linguistic literature and grammar reference works, we manually constructed and reviewed 1020 minimal pairs across a taxonomy of 11 linguistic features, through a team of fluent Irish speakers. We evaluate both existing Large Language Models (LLMs) and fluent human participants on their syntactic knowledge of Irish. Our findings show that humans outperform all models across all linguistic features, achieving 16.6% higher accuracy on average. Moreover, a substantial performance gap of 18.1% persists between open- and closed-source LLMs, with even the strongest model (gpt-5) reaching only 73.5% accuracy compared to 90.1% by human. Interestingly, human participants and models struggle on different aspects of Irish grammar, thus highlighting a difference in representation learned by the models. Overall, Irish-BLiMP provides the first systematic framework for evaluating the grammatical competence of LLMs in Irish and offers a valuable benchmark for advancing research on linguistic understanding in low-resource languages.
format Preprint
id arxiv_https___arxiv_org_abs_2510_20957
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Irish-BLiMP: A Linguistic Benchmark for Evaluating Human and Language Model Performance in a Low-Resource Setting
McGiff, Josh
Tran, Khanh-Tung
Mulcahy, William
Luinín, Dáibhidh Ó
Dalzell, Jake
Bhroin, Róisín Ní
Burke, Adam
O'Sullivan, Barry
Nguyen, Hoang D.
Nikolov, Nikola S.
Computation and Language
We present Irish-BLiMP (Irish Benchmark of Linguistic Minimal Pairs), the first dataset and framework designed for fine-grained evaluation of linguistic competence in the Irish language, an endangered language. Drawing on a variety of linguistic literature and grammar reference works, we manually constructed and reviewed 1020 minimal pairs across a taxonomy of 11 linguistic features, through a team of fluent Irish speakers. We evaluate both existing Large Language Models (LLMs) and fluent human participants on their syntactic knowledge of Irish. Our findings show that humans outperform all models across all linguistic features, achieving 16.6% higher accuracy on average. Moreover, a substantial performance gap of 18.1% persists between open- and closed-source LLMs, with even the strongest model (gpt-5) reaching only 73.5% accuracy compared to 90.1% by human. Interestingly, human participants and models struggle on different aspects of Irish grammar, thus highlighting a difference in representation learned by the models. Overall, Irish-BLiMP provides the first systematic framework for evaluating the grammatical competence of LLMs in Irish and offers a valuable benchmark for advancing research on linguistic understanding in low-resource languages.
title Irish-BLiMP: A Linguistic Benchmark for Evaluating Human and Language Model Performance in a Low-Resource Setting
topic Computation and Language
url https://arxiv.org/abs/2510.20957