HakushoBench (CoT): leaderboard
Metric: Accuracy (%), chain-of-thought prompt (think step by step, then answer); 2,053 manually written short-answer questions on chart and table images from 33 Japanese government white papers, judged correct or incorrect by GPT-5.1, mean of three runs, temperature 0; higher is better. Source: arxiv.org. Saturation forecast: Around December 2026. 9 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.1 (Medium) | 67.9 |
| 2 | GPT-4o (2024-11-20) | 54.1 |
| 3 | InternVL3.5-8B | 51 |
Interactive version: theaggregate.ai/benchmark?slug=hakushobench-cot · How It Works · Data refreshed daily, snapshot 2026-09-29.