ModelRefs / BBH (Big-Bench Hard) Methodology — Methodology
BBH (Big-Bench Hard) Methodology — Methodology
BBH is the subset of BIG-Bench tasks where prior LLMs underperformed humans.
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Frequently asked questions
What does BBH (Big-Bench Hard) measure?
A curated hard subset of diverse reasoning tasks.
What are its main limitations?
Heterogeneous scoring complicates aggregation
When should I use this benchmark?
Reasoning-quality differentiation