BBH
Progress Over Time
Interactive timeline showing model performance evolution on BBH
BBH Leaderboard
| Context | Cost | License | ||||
|---|---|---|---|---|---|---|
| 1 |  Alibaba Cloud / Qwen Team | 235B | — | — | ||
| 2 |  Xiaomi | 1.0T | 1.0M | $0.43 / $0.87 | ||
| 3 |  Amazon | — | — | — | ||
| 4 | Alibaba Cloud / Qwen Team | 33B | — | — | ||
| 5 |  DeepSeek | 236B | — | — | ||
| 6 | Amazon | — | — | — | ||
| 6 | Alibaba Cloud / Qwen Team | 72B | — | — | ||
| 8 |  OpenBMB | 9B | — | — | ||
| 9 | Amazon | — | — | — | ||
| 10 | Alibaba Cloud / Qwen Team | 15B | — | — | ||
| 11 |  Nous Research | 405B | 131K | $1.00 / $1.00 | ||
| 12 | Nous Research | 70B | 131K | $0.70 / $0.70 | ||
| 13 |  Baidu | 21B | — | — |
What is BBH?
Big-Bench Hard (BBH) is a suite of 23 challenging tasks selected from BIG-Bench for which prior language model evaluations did not outperform the average human-rater. These tasks require multi-step reasoning across diverse domains including arithmetic, logical reasoning, reading comprehension, and commonsense reasoning. The benchmark was designed to test capabilities believed to be beyond current language models and focuses on evaluating complex reasoning skills including temporal understanding, spatial reasoning, causal understanding, and deductive logical reasoning.
BBH is a text benchmark evaluating models on language, math, and reasoning tasks. LLM Stats tracks 13 models on this benchmark, scored on a 0–1 scale. The current average is 0.8, with the leader at 0.9.
Compare leaders on the best AI for language, best AI for math and best AI for reasoning leaderboards.
Current leaders
Qwen3 235B A22B from Alibaba Cloud / Qwen Team currently leads the BBH leaderboard with a score of 0.889 across 13 evaluated AI models.
FAQ
Common questions about the BBH benchmark and leaderboard.