ChartJudgeBench - CPA Aspect Ratio: leaderboard

The aspect ratio criterion of ChartJudgeBench Chart Perception Alignment (Wu et al., 2026): 182 chart pairs in which one chart carries unbalanced figure dimensions that distort the plot, and a multimodal judge must prefer the unflawed chart. Accuracy in percent, counting a pair only when the judge picks the better chart in both presentation orders; higher is better.

Metric: Pairwise judging accuracy (%; the 182 aspect ratio pairs; two-pass position-swapped protocol: each of ChartJudgeBench's 1,003 human-filtered chart pairs (an original chart and a copy with one injected flaw) is judged twice with the order reversed and counts as correct only if the judge picks the better chart both times; temperature 0.1). Source: arxiv.org. Saturation forecast: Around February 2027. 26 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3 Pro89#135
2Qwen 3 VL 32B Instruct69.8#582
3GPT-5.266.5#172
4Claude Sonnet 4.559.3#244
5Qwen 2.5 VL 72B Instruct54.9#845
6Qwen 3 VL 8B Instruct35.2#982
7Qwen 2 VL 72B Instruct23.6#1403
8Qwen 3 VL 30B A3B (Thinking)18.7#710
9Qwen 2 VL 7B Instruct11.5#2569
10Qwen 2.5 VL 7B Instruct1.7#1842

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=chartjudgebench-cpa-aspect-ratio · How It Works · Data refreshed daily, snapshot 2026-11-12.