AI Cartography: Mapping the Latent Landscape of AI Benchmark Ecosystems
- URL: http://arxiv.org/abs/2605.25272v1
- Date: Sun, 24 May 2026 21:59:08 GMT
- Title: AI Cartography: Mapping the Latent Landscape of AI Benchmark Ecosystems
- Abstract summary: We introduce a framework for measuring the latent landscape in AI benchmark ecosystems.<n>Applying Confirmatory Factor Analysis (CFA) and Generalizability Theory to 4,000+ models from the Open LLM Leaderboard, we decompose sources of ranking variance.<n>We provide actionable diagnostics to determine how benchmark rankings can be trusted and how benchmark design can be improved.
- Score: 20.174278188532096
- License: http://creativecommons.org/licenses/by-sa/4.0/
- Abstract: While aggregate leaderboard scores drive AI development, they contain substantial measurement noise whose sources and magnitudes remain unquantified, making it unclear when rankings reflect genuine capability differences versus evaluation artifacts. We introduce a framework for measuring the latent landscape in AI benchmark ecosystems. Applying Confirmatory Factor Analysis (CFA) and Generalizability Theory to 4,000+ models from the Open LLM Leaderboard, we decompose sources of ranking variance and establish: (1) structures assumed in current reporting practice underestimate the strength of relationships between benchmarks; (2) evidence of local dependence among leaderboard items, undermining uses of benchmarks as measurement instruments under current scoring systems; (3) contributor metadata explains more rank-relevant variance ($\approx9\%$) than architecture or deployment categories in this context; (4) a manifest-score "scaling law" slope has low reliability ($R_β=0.53$); by contrast, the latent general-factor size slope is highly stable across ecosystem controls ($R_g=0.97$). We are able to provide unique insights into benchmark dynamics, such as which benchmarks are a function of LLM size and which can be oppositely impacted by post-training practices. We provide actionable diagnostics to determine how benchmark rankings can be trusted and how benchmark design can be improved.
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