GenAI Content Detection Task 2: AI vs. Human – Academic Essay Authenticity Challenge

Shammur Absar Chowdhury, Hind Almerekhi, Mucahid Kutlu, Kaan Efe Keleş, Fatema Ahmad, Tasnim Mohiuddin, George Mikros, Firoj Alam


Abstract
This paper presents a comprehensive overview of the first edition of the Academic Essay Authenticity Challenge, organized as part of the GenAI Content Detection shared tasks collocated with COLING 2025. This challenge focuses on detecting machine-generated vs human-authored essays for academic purposes. The task is defined as follows: “Given an essay, identify whether it is generated by a machine or authored by a human.” The challenge involves two languages: English and Arabic. During the evaluation phase, 25 teams submitted systems for English and 21 teams for Arabic, reflecting substantial interest in the task. Finally, five teams submitted system description papers. The majority of submissions utilized fine-tuned transformer-based models, with one team employing Large Language Models (LLMs) such as Llama 2 and Llama 3. This paper outlines the task formulation, details the dataset construction process, and explains the evaluation framework. Additionally, we present a summary of the approaches adopted by participating teams. Nearly all submitted systems outperformed the n-gram-based baseline, with the top-performing systems achieving F1 scores exceeding 0.98 for both languages, indicating significant progress in the detection of machine-generated text.
Anthology ID:
2025.genaidetect-1.37
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:
323–333
Language:
URL:
https://aclanthology.org/2025.genaidetect-1.37/
DOI:
Bibkey:
Cite (ACL):
Shammur Absar Chowdhury, Hind Almerekhi, Mucahid Kutlu, Kaan Efe Keleş, Fatema Ahmad, Tasnim Mohiuddin, George Mikros, and Firoj Alam. 2025. GenAI Content Detection Task 2: AI vs. Human – Academic Essay Authenticity Challenge. In Proceedings of the 1stWorkshop on GenAI Content Detection (GenAIDetect), pages 323–333, Abu Dhabi, UAE. International Conference on Computational Linguistics.
Cite (Informal):
GenAI Content Detection Task 2: AI vs. Human – Academic Essay Authenticity Challenge (Chowdhury et al., GenAIDetect 2025)
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PDF:
https://aclanthology.org/2025.genaidetect-1.37.pdf