Leaderboard

Models on the fully-open question set . Prompt and ground truth are public, so anyone can reproduce the runs.

BoardHeld-outPracticeReference

Edition v1 · cut 7/7/2026 · 18 models · 22 questions · 27 cells imputed (worst-of-others)

Per-model aggregate

Mean Cramér-log is the ranking metric (lower is better), scored against the verified ground-truth distribution. The Answered column shows real vs imputed; a malformed or unscorable answer counts as unanswered.

#ModelMean CramérAnsweredRan
1deepseek/deepseek-v4-pro0.166322/227/7/2026
2openai/o30.279322/227/24/2026
3google/gemini-3.1-pro-preview0.285022/227/7/2026
4anthropic/claude-opus-4.80.290522/227/24/2026
5openai/gpt-5.50.306422/227/7/2026
6z-ai/glm-5.20.372521/22 · 1 imp7/7/2026
7deepseek/deepseek-v3.20.383721/22 · 1 imp7/7/2026
8openai/gpt-5-mini0.399322/227/7/2026
9anthropic/claude-sonnet-4.60.459322/227/7/2026
10anthropic/claude-sonnet-50.604922/227/7/2026
11openai/o3-mini0.637422/227/7/2026
12x-ai/grok-4.30.651922/227/7/2026
13anthropic/claude-fable-50.684821/22 · 1 imp7/8/2026
14~anthropic/claude-fable-latest0.721420/22 · 2 imp7/8/2026
15qwen/qwen3-235b-a22b-thinking-25070.803821/22 · 1 imp7/7/2026
16openai/gpt-5.5-pro1.43679/22 · 13 imp7/9/2026
17openai/gpt-41.700815/22 · 7 imp7/24/2026
18meta-llama/llama-4-maverick1.783321/22 · 1 imp7/7/2026

Per-question Cramér-log heatmap

Each cell is one model's Cramér-log on that question. Imputed cells (the model didn't validly answer) show the worst-of-others penalty, marked .

Questiondeepseek-v4-proo3gemini-3.1-pro-previewclaude-opus-4.8gpt-5.5glm-5.2deepseek-v3.2gpt-5-miniclaude-sonnet-4.6claude-sonnet-5o3-minigrok-4.3claude-fable-5claude-fable-latestqwen3-235b-a22b-thinking-2507gpt-5.5-progpt-4llama-4-maverick
annual-concrete-grand-canyon-fraction0.0900.1220.0240.020🏆0.0830.0620.0430.0781.1700.0530.1070.0890.0210.0320.0500.0550.4260.742
bangladesh-tshirt-area-vs-factories0.4460.0370.0400.0770.1020.4320.2200.0440.020🏆0.0990.6471.0320.4000.2110.1181.0320.4560.912
california-almond-water-per-dollar0.6100.0890.2790.051🏆0.2660.5021.4510.5801.1790.2571.4510.3950.2430.3290.5311.4510.2911.031
chaco-soybean-crossover0.0320.2031.0110.2760.3570.0520.7060.3060.4750.5760.1490.0560.7791.0110.008🏆1.0111.0110.881
china-concrete-three-gorges0.0220.0680.0130.1080.1400.2190.0480.0670.0220.0290.1630.004🏆0.0660.0960.1380.0871.7750.741
electricity-vs-soy-per-worker0.1390.1520.7650.1260.5730.1810.7751.3371.4230.9910.9690.2830.8570.8460.7350.3250.1570.054🏆
germany-coal-to-solar-land-fraction0.064🏆0.8290.5611.4410.2632.9170.0840.7621.3880.5910.3780.3430.3850.9352.9172.9170.2012.741
honduras-costa-rica-homicide-gap0.539🏆1.0770.7271.0000.5611.0831.0291.1631.0930.5971.2730.8130.9380.9340.5720.6191.3311.331
india-solid-fuel-to-lpg-import-years0.0400.0200.0340.0460.1240.2440.0200.0370.0860.4341.5030.0590.0390.001🏆0.3780.0687.5997.599
nigeria-korea-cereal-yields0.3480.2380.025🏆0.3290.1570.0510.0840.2120.1320.2620.0530.0520.5760.3930.9621.4331.4330.173
ocean-fish-biomass0.027🏆0.4730.9010.2961.1060.0280.2050.0660.5814.8200.1541.9438.2388.2388.2380.7988.2388.238
paraguay-electricity-per-co20.0320.2030.0470.0320.0260.005🏆0.0620.3480.0530.1110.8990.0870.0220.0250.0593.5493.5491.532
paraguay-itaipu-brazil-fraction0.0430.1230.0220.009🏆0.0120.0650.7560.1190.0920.6901.0200.8410.8710.7490.2451.0201.0200.221
philippines-remittances-vs-timor-leste0.3730.0980.1830.0820.0800.1410.1190.1590.1000.0540.1610.1200.1190.1130.0760.048🏆1.9481.948
poland-air-quality-coal-miner-wage-years0.0560.5700.0990.0440.2640.041🏆0.2290.1400.2370.9660.7240.0660.4120.4710.1050.9660.9660.850
saudi-desal-per-oil-barrel0.1570.2350.0950.3930.1170.4470.1740.5320.5510.2870.7210.4240.0560.0450.025🏆0.7210.2660.319
saudi-oil-solar-replacement-multiple0.1560.1670.8130.1521.4540.033🏆0.0580.4900.3910.2470.3527.1100.1230.2770.1971.3880.3120.237
ssa-solar-ethiopia-gdp-years0.1320.1230.1481.0400.015🏆1.1641.1090.0770.0370.9261.8800.0330.0270.2661.2722.3452.3451.109
tokyo-car-commute-lane-km0.003🏆0.6030.0100.4980.7350.2601.1401.0630.3961.2630.3150.4990.4530.4830.1081.2630.6080.763
uruguay-share-coal-units-shutdown0.0630.1160.2980.0170.0540.1290.0350.0350.1540.013🏆0.3070.0180.0320.0400.5437.6700.0147.670
vietnam-vs-myanmar-rice-per-worker0.0340.1420.0390.1260.0750.1000.0230.1410.3660.0270.7030.0680.1980.1530.021🏆0.0730.7030.130
world-paved-roads0.2550.4570.1360.2260.1740.0410.0711.0270.1590.0140.0950.008🏆0.2090.2220.3852.7682.7680.012
< 0.05 tight< 0.2 clean< 0.7 productive< 2 different interpretation≥ 2 suspect† imputed (worst-of-others; not a real answer)