BBH
BBH is a reasoning benchmark tracked on BenchGecko. BIG-Bench Hard. 23 challenging tasks from BIG-Bench where prior language models fell below average human performance.
Built from BenchGecko data as of June 22, 2026 · updates when the data changes
BBH is a reasoning benchmark tracked on BenchGecko. BIG-Bench Hard. 23 challenging tasks from BIG-Bench where prior language models fell below average human performance.
Basic
BIG-Bench Hard. 23 challenging tasks from BIG-Bench where prior language models fell below average human performance.
Deep
Scores are reported (%, maximum 100); higher is better. BenchGecko collects BBH scores from Epoch AI and refreshes them daily; the leaderboard on this page shows the current top models.
Expert
Compare models only on the same benchmark version and settings. A benchmark separates models well while scores are spread out; when top models bunch together near the maximum, it stops telling them apart.
Depending on why you're here
- ·reasoning benchmark (%, maximum 100)
- ·Source: Epoch AI
- ·Useful if your workload is reasoning
- ·Check the live leaderboard on /benchmark/bbh before choosing a model
- ·Labs cite benchmark results in launch announcements; check the source and version
- ·BBH is a test of how good an AI is at reasoning
- ·A higher score means better results on that kind of task