BrokenArXiv
Math reasoning benchmark reported in the Tencent Hy4 preview model card appendix.
Category
STEM & Reasoning
Score type
percent
Scale
100%
higher is better
Models tested
4
What is BrokenArXiv?
BrokenArXiv is a benchmark for hard reasoning in science, technology, engineering and math. The official description says: "Math reasoning benchmark reported in the Tencent Hy4 preview model card appendix". Below we describe in simple words what benchmarks of this type generally examine.
What does it test?
BrokenArXiv 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: Math reasoning benchmark reported in the Tencent Hy4 preview model card appendix.
Frequently asked questions
What is the BrokenArXiv benchmark?
BrokenArXiv is a benchmark for hard reasoning in science, technology, engineering and math. The official description says: 'Math reasoning benchmark reported in the Tencent Hy4 preview model card appendix'. Below we describe in simple words what benchmarks of this type generally examine.
What does BrokenArXiv test?
BrokenArXiv 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 BrokenArXiv 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 BrokenArXiv 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/brokenarxiv/scores) or pull it directly from the Open LLM Radar API with any HTTP client.
Benchmark data & downloads
Where to get, inspect and reuse the data behind this benchmark.
Model scores 4 models tested
| # | Model | Score | Date | Source | Verified |
|---|---|---|---|---|---|
| 1 |
Kimi K3
Moonshot AI
|
56.3%
|
28.08.2026 | Tencent Hy4 preview model card benchmark appendix (https://huggingface.co/tencent/Hy4-preview#benchmark-appendix) (Tencent rerun) | Verified |
| 2 |
Hy4 preview
Tencent
|
54.6%
|
28.08.2026 | Tencent Hy4 preview model card benchmark appendix (https://huggingface.co/tencent/Hy4-preview#benchmark-appendix) | Verified |
| 3 |
Qwen3.8-2.4T-A95B
Qwen
|
42.7%
|
28.08.2026 | Tencent Hy4 preview model card benchmark appendix (https://huggingface.co/tencent/Hy4-preview#benchmark-appendix) (Tencent rerun) | Verified |
| 4 |
Hy3
Tencent
|
26.7%
|
28.08.2026 | Tencent Hy4 preview model card benchmark appendix (https://huggingface.co/tencent/Hy4-preview#benchmark-appendix) | Verified |