Who Gets Left Behind? Auditing Disability Inclusivity in Large Language Models
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Abstract (arXiv)
Large Language Models (LLMs) are increasingly used for accessibility guidance, yet many disability groups remain underserved by their advice. To address this gap, we present taxonomy aligned benchmark1 of human validated, general purpose accessibility questions, designed to systematically audit inclusivity across disabilities. Our benchmark evaluates models along three dimensions: Question-Level Coverage (breadth within answers), Disability-Level Coverage (balance across nine disability categories), and Depth (specificity of support). Applying this framework to 17 proprietary and open-weight models reveals persistent inclusivity gaps: Vision, Hearing, and Mobility are frequently addressed, while Speech, Genetic/Developmental, Sensory-Cognitive, and Mental Health remain under served. Depth is similarly concentrated in a few categories but sparse elsewhere. These findings reveal who gets left behind in current LLM accessibility guidance and highlight actionable levers: taxonomy-aware prompting/training and evaluations that jointly audit breadth, balance, and depth.
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23 of 50 references.
References · 23
- 2020Language Models are Few-Shot Learnerscited by 32,419
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- 2020Social Biases in NLP Models as Barriers for Persons with Disabilitiescited by 182
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- 2025Hard Negative Mining for Domain-Specific Retrieval in Enterprise Systemscited by 14
- 2024"Cold, Calculated, and Condescending": How AI Identifies and Explains Ableism Compared to Disabled Peoplecited by 10
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- 2025Encoding Inequity: Examining Demographic Bias in LLM-Driven Robot Caregivingcited by 2
- 2025Beyond Keywords: Evaluating Large Language Model Classification of Nuanced Ableismcited by 1
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