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arXiv · 2510.01924

To Mask or to Mirror: Human-AI Alignment in Collective Reasoning

Crystal Qian·Aaron Parisi·Clémentine Bouleau·Vivian Tsai·Maël Lebreton·Lucas Dixon
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Abstract

As large language models (LLMs) are increasingly used to model and augment collective decision-making, it is critical to examine their alignment with human social reasoning. We present an empirical framework for assessing collective alignment, in contrast to prior work on the individual level. Using the Lost at Sea social psychology task, we conduct a large-scale online experiment (N=748), randomly assigning groups to leader elections with either visible demographic attributes (e.g. name, gender) or pseudonymous aliases. We then simulate matched LLM groups conditioned on the human data, benchmarking Gemini 2.5, GPT 4.1, Claude Haiku 3.5, and Gemma 3. LLM behaviors diverge: some mirror human biases; others mask these biases and attempt to compensate for them. We empirically demonstrate that human-AI alignment in collective reasoning depends on context, cues, and model-specific inductive biases. Understanding how LLMs align with collective human behavior is critical to advancing socially-aligned AI, and demands dynamic benchmarks that capture the complexities of collective reasoning.

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Crystal Qian, Aaron Parisi, Clémentine Bouleau, Vivian Tsai, Maël Lebreton, Lucas Dixon. 2025-10-02. To Mask or to Mirror: Human-AI Alignment in Collective Reasoning. https://arxiv.org/abs/2510.01924

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