STEM & Reasoning Benchmark

IMOAnswerBench (with tools)

IMOAnswerBench - with tools variant. International Mathematical Olympiad answer evaluation benchmark with tool use.

Category

STEM & Reasoning

Score type

percent

Scale

100%

higher is better

Models tested

4

What is IMOAnswerBench (with tools)?

IMOAnswerBench (with tools) is a benchmark for hard reasoning in science, technology, engineering and math. The official description says: "IMOAnswerBench - with tools variant". Below we describe in simple words what benchmarks of this type generally examine.

What does it test?

IMOAnswerBench (with tools) 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

How to read the score

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: IMOAnswerBench - with tools variant. International Mathematical Olympiad answer evaluation benchmark with tool use.

Frequently asked questions

What is the IMOAnswerBench (with tools) benchmark?

IMOAnswerBench (with tools) is a benchmark for hard reasoning in science, technology, engineering and math. The official description says: 'IMOAnswerBench - with tools variant'. Below we describe in simple words what benchmarks of this type generally examine.

What does IMOAnswerBench (with tools) test?

IMOAnswerBench (with tools) 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 IMOAnswerBench (with tools) 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 IMOAnswerBench (with tools) 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/imoanswerbench-with-tools/scores) or pull it directly from the Open LLM Radar API with any HTTP client.

Model scores 4 models tested

Reset
# Model Score Date Source Verified
1 Kimi K2.6
Moonshot AI
93.71%
04.06.2026 Report Unverified
2 NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16
NVIDIA
92.3%
04.06.2026 Report Verified
3 DeepSeek-V4-Flash
DeepSeek
89.6%
04.06.2026 Report Unverified
4 DeepSeek-V4-Pro
DeepSeek
85.4%
04.06.2026 Report Unverified

What now?

You've seen how models score on IMOAnswerBench (with tools) — here's what to do next.