Using complex prompts to identify fine-grained biases in image generation through ChatGPT-4o

Marinus Ferreira

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arXiv · 2504.00388

Using complex prompts to identify fine-grained biases in image generation through ChatGPT-4o

Marinus Ferreira

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Abstract

There are not one but two dimensions of bias that can be revealed through the study of large AI models: not only bias in training data or the products of an AI, but also bias in society, such as disparity in employment or health outcomes between different demographic groups. Often training data and AI output is biased for or against certain demographics (i.e. older white people are overrepresented in image datasets), but sometimes large AI models accurately illustrate biases in the real world (i.e. young black men being disproportionately viewed as threatening). These social disparities often appear in image generation AI outputs in the form of 'marked' features, where some feature of an individual or setting is a social marker of disparity, and prompts both humans and AI systems to treat subjects that are marked in this way as exceptional and requiring special treatment. Generative AI has proven to be very sensitive to such marked features, to the extent of over-emphasising them and thus often exacerbating social biases. I briefly discuss how we can use complex prompts to image generation AI to investigate either dimension of bias, emphasising how we can probe the large language models underlying image generation AI through, for example, automated sentiment analysis of the text prompts used to generate images.

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Marinus Ferreira. 2025-04-01. Using complex prompts to identify fine-grained biases in image generation through ChatGPT-4o. https://arxiv.org/abs/2504.00388

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