KOR-Bench - Counterfactual: leaderboard

Answering within 25 counterfactual worlds whose stated rules contradict real-world knowledge; the score is accuracy under the fictional rules. Chat models, zero-shot. Higher is better. Source: arxiv.org/abs/2410.06526.

Metric: Accuracy (%; zero-shot, 250 questions). Source: arxiv.org. Saturation forecast: Estimated already saturated. 38 models tracked.

Top models

#ModelScoreOverall rank
1O1 Preview (2024-09-12)92.8#220
2GPT-4o (2024-05-13)92#338
3O1 Mini (2024-09-12)91.6#414
4Claude 3.5 Sonnet (20240620)91.2#309
5Command-R+ (08-2024)90.4#839
6Llama 3 70B Instruct89.6#643
7Qwen 2 72B Instruct89.6#584
8Mistral Large 2 (Jul)89.2#498
9Qwen 2.5 32B Instruct88.8#511
10Qwen 2.5 14B Instruct88.8#657
11Qwen 2 7B Instruct88.8#983
12c4ai-command-r-08-202488.4#945
13Llama 3.1 70B Instruct88#570
14Phi-3.5-MoE-instruct88#706
15Llama 3.1 405B Instruct87.6#472

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #6 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=kor-bench-counterfactual · How It Works · Data refreshed daily, snapshot 2026-11-07.