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Autores principales: Abdoli, Sajjad, Cilibrasi, Rudi, Al-Shikh, Rima
Formato: Preprint
Publicado: 2025
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Acceso en línea:https://arxiv.org/abs/2509.10707
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author Abdoli, Sajjad
Cilibrasi, Rudi
Al-Shikh, Rima
author_facet Abdoli, Sajjad
Cilibrasi, Rudi
Al-Shikh, Rima
contents As AI systems increasingly evaluate other AI outputs, understanding their assessment behavior becomes crucial for preventing cascading biases. This study analyzes vision-language descriptions generated by NVIDIA's Describe Anything Model and evaluated by three GPT variants (GPT-4o, GPT-4o-mini, GPT-5) to uncover distinct "evaluation personalities" the underlying assessment strategies and biases each model demonstrates. GPT-4o-mini exhibits systematic consistency with minimal variance, GPT-4o excels at error detection, while GPT-5 shows extreme conservatism with high variability. Controlled experiments using Gemini 2.5 Pro as an independent question generator validate that these personalities are inherent model properties rather than artifacts. Cross-family analysis through semantic similarity of generated questions reveals significant divergence: GPT models cluster together with high similarity while Gemini exhibits markedly different evaluation strategies. All GPT models demonstrate a consistent 2:1 bias favoring negative assessment over positive confirmation, though this pattern appears family-specific rather than universal across AI architectures. These findings suggest that evaluation competence does not scale with general capability and that robust AI assessment requires diverse architectural perspectives.
format Preprint
id arxiv_https___arxiv_org_abs_2509_10707
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Understanding AI Evaluation Patterns: How Different GPT Models Assess Vision-Language Descriptions
Abdoli, Sajjad
Cilibrasi, Rudi
Al-Shikh, Rima
Artificial Intelligence
Computation and Language
As AI systems increasingly evaluate other AI outputs, understanding their assessment behavior becomes crucial for preventing cascading biases. This study analyzes vision-language descriptions generated by NVIDIA's Describe Anything Model and evaluated by three GPT variants (GPT-4o, GPT-4o-mini, GPT-5) to uncover distinct "evaluation personalities" the underlying assessment strategies and biases each model demonstrates. GPT-4o-mini exhibits systematic consistency with minimal variance, GPT-4o excels at error detection, while GPT-5 shows extreme conservatism with high variability. Controlled experiments using Gemini 2.5 Pro as an independent question generator validate that these personalities are inherent model properties rather than artifacts. Cross-family analysis through semantic similarity of generated questions reveals significant divergence: GPT models cluster together with high similarity while Gemini exhibits markedly different evaluation strategies. All GPT models demonstrate a consistent 2:1 bias favoring negative assessment over positive confirmation, though this pattern appears family-specific rather than universal across AI architectures. These findings suggest that evaluation competence does not scale with general capability and that robust AI assessment requires diverse architectural perspectives.
title Understanding AI Evaluation Patterns: How Different GPT Models Assess Vision-Language Descriptions
topic Artificial Intelligence
Computation and Language
url https://arxiv.org/abs/2509.10707