CEAID: Benchmark of Multilingual Machine-Generated Text Detection Methods for Central European Languages

Dominik Macko, Jakub Kop\'al


Abstract
Machine-generated text detection, as an important task, is predominantly focused on English in research. This makes the existing detectors almost unusable for non-English languages, relying purely on cross-lingual transferability. There exist only a few works focused on any of Central European languages, leaving the transferability towards these languages rather unexplored. We fill this gap by providing the first benchmark of detection methods focused on this region, while also providing comparison of train-languages combinations to identify the best performing ones. We focus on multi-domain, multi-generator, and multilingual evaluation, pinpointing the differences of individual aspects, as well as adversarial robustness of detection methods. Supervised finetuned detectors in the Central European languages are found the most performant in these languages as well as the most resistant against obfuscation.
Anthology ID:
2026.findings-acl.1458
Volume:
Findings of the Association for Computational Linguistics: ACL 2026
Month:
July
Year:
2026
Address:
San Diego, California, United States
Editors:
Maria Liakata, Viviane P. Moreira, Jiajun Zhang, David Jurgens
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
29177–29190
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URL:
https://preview.aclanthology.org/ingest-acl/2026.findings-acl.1458/
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Bibkey:
Cite (ACL):
Dominik Macko and Jakub Kop\'al. 2026. CEAID: Benchmark of Multilingual Machine-Generated Text Detection Methods for Central European Languages. In Findings of the Association for Computational Linguistics: ACL 2026, pages 29177–29190, San Diego, California, United States. Association for Computational Linguistics.
Cite (Informal):
CEAID: Benchmark of Multilingual Machine-Generated Text Detection Methods for Central European Languages (Macko & Kop'al, Findings 2026)
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https://preview.aclanthology.org/ingest-acl/2026.findings-acl.1458.pdf
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