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BIG-Bench Hard leaderboard

Qwen2.5 72B Instruct leads
79.8%
models measured
3
lead over #2
+4.7 pts
median
75.1%

Leader on BIG-Bench Hard · read October 22

On October 22, 2026, 4 of our catalog's models had a BIG-Bench Hard result, and Google Gemini 1.5 Pro led with 89.2%, ahead of Qwen2.5 72B Instruct at 79.8%.

The hardest tasks of BIG-Bench, where earlier models fell short of the average human rater. Average score.

Role in the index

BIG-Bench Hard is shown as published and does not feed any of our indexes. Read the methodology

BIG-Bench Hard results for models in the catalog
# Model Result Evidence Coding index Output $/Mtok
1 Gemini 1.5 ProRetiredGoogle 89.2% Not benchmarked $5.00
2 Qwen2.5 72B InstructQwen 79.8% Not benchmarked $0.40
3 GPT-4OpenAI 75.1% Not benchmarked $60.00
4 GPT-3.5 TurboOpenAI 61.6% Not benchmarked $1.50

Only models in our catalog are listed, and each appears once with its best published run. 215 rows were read from the source on October 22, 2026, and rows that match no catalog model are left out.