Persona prompting in multimodal LLMs for urban sentiment yields high within-persona stability but limited cross-persona variation, with no-persona models often matching or exceeding persona-conditioned agreement to human labels.
Sensitivity, per- formance, robustness: Deconstructing the effect of sociodemographic prompting,
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Stable Behavior, Limited Variation: Persona Validity in LLM Agents for Urban Sentiment Perception
Persona prompting in multimodal LLMs for urban sentiment yields high within-persona stability but limited cross-persona variation, with no-persona models often matching or exceeding persona-conditioned agreement to human labels.