reasoning benchmark
Apex
Apex is a challenging frontier reasoning benchmark testing advanced multi-step problem solving across difficult STEM and logical tasks.
Updated Aug 11, 2026
Models2
Model coverage2
MetricScore
EvidenceB
Apex Ranking
Higher score ranks better on this benchmark.
| 1 | NV | 84.8% | 100.0% | 2 | C | |
| 2 | AC | 22.7% | 0.0% | 2 | C |
Apex Score Distribution
A closer view of the leading scores on this benchmark.
Apex Highlights
The leading models and scores on this benchmark.
What is Apex?
What Apex measures and how its scores work.
Apex is a challenging frontier reasoning benchmark testing advanced multi-step problem solving across difficult STEM and logical tasks.
Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.
- Family
- Apex
- Modality
- text
- Primary category
- reasoning
- Score direction
- higher
- LLMBoard eligible
- No
- Evaluation key
- apex|llm-stats-current
Benchmark scores retain their original unit. Overall score eligibility is shown separately.
FAQ
Common questions about Apex.
Which model scores highest on Apex?
Nemotron 3 Ultra (550B A55B) is currently ranked first with 84.8%.
What does Apex measure?
Apex is a challenging frontier reasoning benchmark testing advanced multi-step problem solving across difficult STEM and logical tasks.
Is a higher score better?
Yes. Higher values rank better for this benchmark.
How many models are compared?
2 model results are currently shown.
Does this benchmark affect the overall score?
No. This benchmark is shown for reference but does not contribute to the overall score.