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StylisticBias: A Few Human Visual Cues Drive Most Social Biases in MLLMs

paperactiveprovisionalstylisticbias-a-few-human-visual-cues-drive-most-social-biases-in-mllms-a9c822ef·1 events·first seen 47h ago

Aliases: StylisticBias: A Few Human Visual Cues Drive Most Social Biases in MLLMs

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5arXiv · cs.CL·47h ago·source ↗

StylisticBias benchmark reveals a small set of visual cues drives most social bias in MLLMs

Researchers introduce StylisticBias, a controlled benchmark of ~25K photorealistic face images with single-attribute variations designed to isolate how specific visual cues shift social judgments in multimodal LLMs. Evaluating six MLLMs across 25 binary social judgment scenarios, they find that age and body type dominate identity-level effects, while fashion style drives the largest attribute-level shifts, with ~15 attributes accounting for ~80% of total bias variation. The benchmark is released publicly on GitHub and Hugging Face, enabling fine-grained bias auditing of multimodal models.