BioMysteryBench

BioMysteryBench is a benchmark for hard reasoning in science, technology, engineering and math. The official description says: "Biology research-agent benchmark (99-task initial release); per model card footnote evaluated with Claude Code harness, judged by Kimi-K3". Below we describe in simple words what benchmarks of this type generally examine.

BioMysteryBench measures hard reasoning in science, technology, engineering and math. In detail, it checks:

• graduate- and expert-level questions in science and math
• multi-step derivations where each step must be correct
• problems written to defeat memorisation (novel or recent exam problems)
• correct use of formulas, units and logical inference

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better.

Official methodology note: Biology research-agent benchmark (99-task initial release); per model card footnote evaluated with Claude Code harness, judged by Kimi-K3.

What is the BioMysteryBench benchmark?

BioMysteryBench is a benchmark for hard reasoning in science, technology, engineering and math. The official description says: 'Biology research-agent benchmark (99-task initial release); per model card footnote evaluated with Claude Code harness, judged by Kimi-K3'. Below we describe in simple words what benchmarks of this type generally examine.

What does BioMysteryBench test?

BioMysteryBench mainly measures hard reasoning in science, technology, engineering and math. Concretely, it checks: graduate- and expert-level questions in science and math; multi-step derivations where each step must be correct; problems written to defeat memorisation (novel or recent exam problems).

How is the BioMysteryBench score calculated?

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better. The declared maximum score of this benchmark is 100.0.

Where do I get BioMysteryBench data and scores?

The official benchmark page/reference is linked on this page. Every score on Open LLM Radar is also available as open data: download the scores JSON (http://open-llm-radar-api:8000/api/v1/benchmarks/biomysterybench/scores) or pull it directly from the Open LLM Radar API with any HTTP client.