arXiv AI By Katy Blumer, Jon Kleinberg, Ravi Kumar, Andrew Tomkins

Bouba Beats Kiki, and Other Regularities in the Subjective Preferences of LLMs

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The paper investigates how large language models (LLMs) express subjective preferences in short-form content such as numbers, baby names, and fictional cities. It identifies 29 aspects (e.g., length, alphabetic order, popularity) that influence model choices and shows that these preferences are strong, reproducible, and sensitive to how questions are phrased. The study also reveals that the interaction between generating alternatives and ranking them can produce unexpected preference patterns, raising concerns about potential manipulation.

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