WinoQueer-NL: Assessing Bias in Dutch Language Models toward LGBTQ+ Identities

Jiska Beuk, Gerasimos Spanakis


Abstract
While English language models have been widely examined for anti-queer bias, Dutch models remain understudied. To address this gap, we developed a culturally and linguistically adapted Dutch dataset based on the English WinoQueer benchmark, containing pairs of stereotypical and counter-stereotypical sentences. To validate and expand it, we conducted an online survey with 43 Dutch queer participants, confirming 145 of 171 stereotypes as culturally relevant and identifying 22 new biases through free-text responses. The final dataset, comprising 42,906 sentences, was evaluated using a range of Dutch-specific and multilingual models, including both masked language models (MLMs) and autoregressive language models (ARLMs), with bias measured via a score comparing log-likelihoods of stereotypical versus counter-stereotypical sentences. While the mean bias score across models appeared neutral (~50%), closer analysis revealed significant disparities: some models favored stereotypical sentences up to 97% of the time for transgender identities, but only 6% of the time for gay-related pairs, with transgender and non-binary identities consistently receiving the highest bias scores. Our findings highlight the importance of culturally grounded datasets for evaluating and mitigating biases that disproportionately impact marginalized groups in Dutch language models.
Anthology ID:
2026.gebnlp-1.3
Volume:
Proceedings of the 7th Workshop on Gender Bias in Natural Language Processing (GeBNLP)
Month:
November
Year:
2026
Address:
Hengqin, China (remote)
Editors:
Agnieszka Faleńska, Christine Basta, Marta Costa-jussà, Karolina Stańczak, Debora Nozza, Giuseppe Attanasio, Vera Neplenbroek, Christian Hardmeier
Venues:
GeBNLP | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
21–34
Language:
URL:
https://aclanthology.org/2026.gebnlp-1.3/
DOI:
Bibkey:
Cite (ACL):
Jiska Beuk and Gerasimos Spanakis. 2026. WinoQueer-NL: Assessing Bias in Dutch Language Models toward LGBTQ+ Identities. In Proceedings of the 7th Workshop on Gender Bias in Natural Language Processing (GeBNLP), pages 21–34, Hengqin, China (remote). Association for Computational Linguistics.
Cite (Informal):
WinoQueer-NL: Assessing Bias in Dutch Language Models toward LGBTQ+ Identities (Beuk & Spanakis, GeBNLP 2026)
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PDF:
https://aclanthology.org/2026.gebnlp-1.3.pdf
Sources:
 2026.gebnlp-1.3.sources.zip