Big-Bench Hard: leaderboard

23 tasks from BIG-Bench where prior language models failed to outperform average human raters. Tests algorithmic reasoning, language understanding, and world knowledge.

Metric: Average (%). Source: epoch.ai. Saturation forecast: Estimated already saturated. 50 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 1.5 Pro (001)89.2#444
2DeepSeek V387.5#321
3Llama 3.1 405B82.9#466
4Phi-3-medium-128k-instruct81.4#1013
5Qwen 2.5 72B79.8#499
6Phi-3-small-8k-instruct79.1#967
7DeepSeek V278.8#549
8GPT-4 (0613)75.12#491
9Yi Chat 34B71.7#976
10Phi-3 Mini 4K Instruct71.7#1297
11StableBeluga269.3#1078
12Llama 2 70B Base64.9#1025
13GPT-3.5 Turbo (0613)61.59#1118
14Phi-259.4#1511
15Llama 2 70B Chat58.5#1237

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=big-bench-hard · How It Works · Data refreshed daily, snapshot 2026-10-20.