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Beyond the ranking: methods, benchmarks and real scenarios

No “everything you need to know” filler. Each essay solves one problem: why leaderboards mislead, where Chinese OCR breaks, why GUI agents fail on real phones — and whether this site can get indexed at all.

Eight dimensions, 2.3 degrees of freedom: the correlation matrix behind 32 Chinese multimodal models
Methodology·Oct 18, 2026·13 min

Eight dimensions, 2.3 degrees of freedom: the correlation matrix behind 32 Chinese multimodal models

We correlated all eight scores across 32 models. Document and chart move at r = 0.94; agent and ecosystem at 0.79. The first principal component explains 62.9% of variance and the participation ratio puts the scorecard at 2.33 effective dimensions. The dimensions are not useless; the weighted sum is voting twice for the same thing.

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