Counterspeech Generation using Small Language Models

Abubakar Sadiq Muhammad, Simona Frenda, Gavin Abercrombie


Abstract
Counterspeech offers a way to tackle harmful content online without restricting freedom of expression. This work explores counterspeech generation using small language models (SLMs) as lightweight and cost-effective alternatives to large language models. We evaluate SLMs ranging from 100 million to 3 billion parameters using simple prompting strategies as well as fine-tuning, combining automatic and robust human evaluations. Our findings demonstrate that small language models can generate relevant, coherent, and high-quality counterspeech, suggesting their potential suitability for efficient and responsible deployments.
Anthology ID:
2026.acl-srw.52
Volume:
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 4: Student Research Workshop)
Month:
July
Year:
2026
Address:
San Diego, California, United States
Editors:
Santosh T.Y.S.S., Juan Diego Rodriguez, Ona de Gibert
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
581–594
Language:
URL:
https://preview.aclanthology.org/ingestion-form-platform/2026.acl-srw.52/
DOI:
Bibkey:
Cite (ACL):
Abubakar Sadiq Muhammad, Simona Frenda, and Gavin Abercrombie. 2026. Counterspeech Generation using Small Language Models. In Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 4: Student Research Workshop), pages 581–594, San Diego, California, United States. Association for Computational Linguistics.
Cite (Informal):
Counterspeech Generation using Small Language Models (Muhammad et al., ACL 2026)
Copy Citation:
PDF:
https://preview.aclanthology.org/ingestion-form-platform/2026.acl-srw.52.pdf