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reasoning benchmark

Apex Leaderboard

Apex is a reasoning benchmark for multi-step problem solving across STEM and logical tasks.

Updated Sep 5, 2026

Models2
Model coverage2
MetricScore
EvidenceB

On this page

  • Ranking
  • Highlights
  • Distribution
  • Top models
  • About
  • FAQ

Apex Ranking

Higher score ranks better on this benchmark.

2 rows
Columns

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Sort by
Rank
Model
Score
Percentile
Participants
Evidence
Evaluated
Rank01ModelNVNemotron 3 Ultra (550B A55B)NVIDIAScore84.80%Percentile100.00%Participants2EvidenceCEvaluatedSep 8, 2026
Rank02ModelACQwen3.7-PlusAlibaba Cloud / Qwen TeamScore22.70%Percentile0.00%Participants2EvidenceCEvaluatedSep 8, 2026

Apex Highlights

The leading models and scores on this benchmark.

Rank #1Nemotron 3 Ultra (550B A55B)84.80%Rank #2Qwen3.7-Plus22.70%

Apex Score Distribution

A closer view of the leading scores on this benchmark.

Apex

The Top AI Models for Apex

The first five results on this benchmark, with official price and output speed added where the model identity can be matched.

What is Apex?

What Apex measures and how its scores work.

Apex is a reasoning benchmark focused on multi-step problem solving across STEM and logical tasks.

Apex measures performance on STEM and logical reasoning tasks using the Score metric, reported as a ratio.

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
overall

LLM Stats. 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 84.80%.

What are the top three models on Apex?

The current leaders are Nemotron 3 Ultra (550B A55B) (84.80%) and Qwen3.7-Plus (22.70%).

Which Apex model has the lowest official input price?

Nemotron 3 Ultra (550B A55B) has the lowest matched official input price at $0.50 input / $2.5 output per 1M tokens.

Which models are fastest among Apex results?

No matched runtime record is currently available.

Does the highest score result prove overall model quality?

No. This benchmark measures one defined capability or task. The overall LLMBoard score uses a separate aggregation across eligible benchmark evidence.

What does Apex measure?

Apex measures performance on STEM and logical reasoning tasks using the Score metric, reported as a ratio.

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.

Ranking basisThis apex AI model leaderboard uses descending score in the benchmark original unit. The leaderboard ranking keeps matched price and speed data separate from benchmark evidence.

  1. 01
    NV
    Nemotron 3 Ultra (550B A55B)NVIDIA
    Score
    84.80%
    Price
    $0.50 input / $2.5 output per 1M tokens

    Strengths

    • Ranks #1 of 2 compared models
    • 100th percentile on this benchmark
    • C evidence result

    Considerations

    • This result measures Apex, not total model capability
  2. 02
    AC
    Qwen3.7-PlusAlibaba Cloud / Qwen Team
    Score
    22.70%
    Price
    $0.50 input / $3.0 output per 1M tokens

    Strengths

    • Ranks #2 of 2 compared models
    • 0th percentile on this benchmark
    • C evidence result

    Considerations

    • This result measures Apex, not total model capability

Selection summary

Best AI Models for Apex

Nemotron 3 Ultra (550B A55B) currently leads Apex with 84.80%. It is the top model on this specific benchmark, while the best LLM for the broader task should also be checked against other benchmarks, price, and runtime.

Use this leaderboard with the supporting benchmark results and coverage details above. A leaderboard position summarizes the selected ranking signal; it does not replace workload-specific testing.

Benchmark rank #1Nemotron 3 Ultra (550B A55B)84.80% · $0.50 input / $2.5 output per 1M tokens
Benchmark rank #2Qwen3.7-Plus22.70% · $0.50 input / $3.0 output per 1M tokens