NYT-Connections: A Deceptively Simple Text Classification Task that Stumps System-1 Thinkers

Angel Yahir Loredo Lopez, Tyler McDonald, Ali Emami


Abstract
Large Language Models (LLMs) have shown impressive performance on various benchmarks, yet their ability to engage in deliberate reasoning remains questionable. We present NYT-Connections, a collection of 358 simple word classification puzzles derived from the New York Times Connections game. This benchmark is designed to penalize quick, intuitive “System 1” thinking, isolating fundamental reasoning skills. We evaluated six recent LLMs, a simple machine learning heuristic, and humans across three configurations: single-attempt, multiple attempts without hints, and multiple attempts with contextual hints. Our findings reveal a significant performance gap: even top-performing LLMs like GPT-4 fall short of human performance by nearly 30%. Notably, advanced prompting techniques such as Chain-of-Thought and Self-Consistency show diminishing returns as task difficulty increases. NYT-Connections uniquely combines linguistic isolation, resistance to intuitive shortcuts, and regular updates to mitigate data leakage, offering a novel tool for assessing LLM reasoning capabilities.
Anthology ID:
2025.coling-main.134
Volume:
Proceedings of the 31st International Conference on Computational Linguistics
Month:
January
Year:
2025
Address:
Abu Dhabi, UAE
Editors:
Owen Rambow, Leo Wanner, Marianna Apidianaki, Hend Al-Khalifa, Barbara Di Eugenio, Steven Schockaert
Venue:
COLING
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1952–1963
Language:
URL:
https://aclanthology.org/2025.coling-main.134/
DOI:
Bibkey:
Cite (ACL):
Angel Yahir Loredo Lopez, Tyler McDonald, and Ali Emami. 2025. NYT-Connections: A Deceptively Simple Text Classification Task that Stumps System-1 Thinkers. In Proceedings of the 31st International Conference on Computational Linguistics, pages 1952–1963, Abu Dhabi, UAE. Association for Computational Linguistics.
Cite (Informal):
NYT-Connections: A Deceptively Simple Text Classification Task that Stumps System-1 Thinkers (Loredo Lopez et al., COLING 2025)
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PDF:
https://aclanthology.org/2025.coling-main.134.pdf