GenAI Content Detection Task 3: Cross-Domain Machine Generated Text Detection Challenge

Liam Dugan, Andrew Zhu, Firoj Alam, Preslav Nakov, Marianna Apidianaki, Chris Callison-Burch


Abstract
Recently there have been many shared tasks targeting the detection of generated text from Large Language Models (LLMs). However, these shared tasks tend to focus either on cases where text is limited to one particular domain or cases where text can be from many domains, some of which may not be seen during test time. In this shared task, using the newly released RAID benchmark, we aim to answer whether or not models can detect generated text from a large, yet fixed, number of domains and LLMs, all of which are seen during training. Over the course of three months, our task was attempted by 9 teams with 23 detector submissions. We find that multiple participants were able to obtain accuracies of over 99% on machine-generated text from RAID while maintaining a 5% False Positive Rate—suggesting that detectors are able to robustly detect text from many domains and models simultaneously. We discuss potential interpretations of this result and provide directions for future research.
Anthology ID:
2025.genaidetect-1.45
Volume:
Proceedings of the 1stWorkshop on GenAI Content Detection (GenAIDetect)
Month:
January
Year:
2025
Address:
Abu Dhabi, UAE
Editors:
Firoj Alam, Preslav Nakov, Nizar Habash, Iryna Gurevych, Shammur Chowdhury, Artem Shelmanov, Yuxia Wang, Ekaterina Artemova, Mucahid Kutlu, George Mikros
Venues:
GenAIDetect | WS
SIG:
Publisher:
International Conference on Computational Linguistics
Note:
Pages:
377–388
Language:
URL:
https://aclanthology.org/2025.genaidetect-1.45/
DOI:
Bibkey:
Cite (ACL):
Liam Dugan, Andrew Zhu, Firoj Alam, Preslav Nakov, Marianna Apidianaki, and Chris Callison-Burch. 2025. GenAI Content Detection Task 3: Cross-Domain Machine Generated Text Detection Challenge. In Proceedings of the 1stWorkshop on GenAI Content Detection (GenAIDetect), pages 377–388, Abu Dhabi, UAE. International Conference on Computational Linguistics.
Cite (Informal):
GenAI Content Detection Task 3: Cross-Domain Machine Generated Text Detection Challenge (Dugan et al., GenAIDetect 2025)
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PDF:
https://aclanthology.org/2025.genaidetect-1.45.pdf