reasoning benchmark
APEX-Agents Leaderboard
APEX-Agents is a benchmark evaluating AI agents on long horizon professional tasks that require sustained reasoning, planning, and execution across complex multi-step workflows.
Updated Aug 17, 2026
Models8
Model coverage8
MetricScore
EvidenceB
APEX-Agents Ranking
Higher score ranks better on this benchmark.
Sort by
Rank | Model | Score | Percentile | Participants | Evidence | Evaluated |
|---|
| Rank01 | ModelXA | Score57.5% | Percentile100.0% | Participants8 | EvidenceC | Evaluated |
| Rank02 | ModelMA | Score37.6% | Percentile85.7% | Participants8 | EvidenceC | Evaluated |
| Rank03 | ModelBY | Score33.8% | Percentile71.4% | Participants8 | EvidenceC | Evaluated |
| Rank04 | ModelGO | Score33.5% | Percentile57.1% | Participants8 | EvidenceC | Evaluated |
| Rank05 | ModelBY | Score29.2% | Percentile42.9% | Participants8 | EvidenceC | Evaluated |
| Rank06 | ModelMA | Score27.9% | Percentile28.6% | Participants8 | EvidenceC | Evaluated |
| Rank07 | ModelMI | Score27.7% | Percentile14.3% | Participants8 | EvidenceC | Evaluated |
| Rank08 | ModelTE | Score25.6% | Percentile0.0% | Participants8 | EvidenceC | Evaluated |
APEX-Agents Highlights
The leading models and scores on this benchmark.
APEX-Agents Score Distribution
A closer view of the leading scores on this benchmark.
The Top AI Models for APEX-Agents
The first five results on this benchmark, with official price and output speed added where the model identity can be matched.
Ranking basisThis apex-agents AI model leaderboard uses descending score in the benchmark's original unit. The leaderboard ranking keeps matched price and speed data separate from benchmark evidence.
- 01XAGrok 4.6xAI
- Score
- 57.5%
- Price
- $2.0 input / $6.0 output per 1M tokens
- Speed
- Up to 4.7 tok/s via xAI
Strengths
- Ranks #1 of 8 compared models
- 100th percentile on this benchmark
- C evidence result
Considerations
- This result measures APEX-Agents, not total model capability
- 02MAKimi K3Moonshot AI
- Score
- 37.6%
- Price
- $3.0 input / $15 output per 1M tokens
- Speed
- Up to 26 tok/s via Fireworks
Strengths
- Ranks #2 of 8 compared models
- 86th percentile on this benchmark
- C evidence result
Considerations
- This result measures APEX-Agents, not total model capability
- 03BYSeed 2.1 ProByteDance
- Score
- 33.8%
Strengths
- Ranks #3 of 8 compared models
- 71th percentile on this benchmark
- C evidence result
Considerations
- This result measures APEX-Agents, not total model capability
- 04GOGemini 3.1 ProGoogle
- Score
- 33.5%
- Price
- $2.0 input / $12 output per 1M tokens
- Speed
- Up to 23 tok/s via Google
Strengths
- Ranks #4 of 8 compared models
- 57th percentile on this benchmark
- C evidence result
Considerations
- This result measures APEX-Agents, not total model capability
- 05BYSeed 2.1 TurboByteDance
- Score
- 29.2%
Strengths
- Ranks #5 of 8 compared models
- 43th percentile on this benchmark
- C evidence result
Considerations
- This result measures APEX-Agents, not total model capability
Selection summary
Best AI Models for APEX-Agents
Grok 4.6 currently leads APEX-Agents with 57.5%. 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.
What is APEX-Agents?
What APEX-Agents measures and how its scores work.
APEX-Agents is a benchmark evaluating AI agents on long horizon professional tasks that require sustained reasoning, planning, and execution across complex multi-step workflows.
Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.
- Family
- APEX-Agents
- Modality
- text
- Primary category
- reasoning
- Score direction
- higher
- LLMBoard eligible
- Yes
- Evaluation key
- apex-agents|llm-stats-current
Benchmark scores retain their original unit. Overall score eligibility is shown separately.
FAQ
Common questions about APEX-Agents.
Which model scores highest on APEX-Agents?
Grok 4.6 is currently ranked first with 57.5%.
What does APEX-Agents measure?
APEX-Agents is a benchmark evaluating AI agents on long horizon professional tasks that require sustained reasoning, planning, and execution across complex multi-step workflows.
Is a higher score better?
Yes. Higher values rank better for this benchmark.
How many models are compared?
8 model results are currently shown.
Does this benchmark affect the overall score?
Yes. This benchmark can contribute to the current LLMBoard capability score.