reasoning benchmark
OJBench (C++) Leaderboard
OJBench (C++) is the C++ subset of OJBench, a competition-level code benchmark that evaluates large language models on programming competition problems from NOI and ICPC using C++ as the implementation language.
Updated Aug 17, 2026
Models1
Model coverage1
MetricScore
EvidenceB
OJBench (C++) Ranking
Higher score ranks better on this benchmark.
Sort by
Rank | Model | Score | Percentile | Participants | Evidence | Evaluated |
|---|
| Rank01 | ModelMA | Score57.4% | Percentile100.0% | Participants1 | EvidenceC | Evaluated |
OJBench (C++) Highlights
The leading models and scores on this benchmark.
The Top AI Models for OJBench (C++)
The first five results on this benchmark, with official price and output speed added where the model identity can be matched.
Ranking basisThis ojbench (c++) 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.
- 01MAKimi K2.5Moonshot AI
- Score
- 57.4%
- Price
- $0.60 input / $3.0 output per 1M tokens
Strengths
- Ranks #1 of 1 compared models
- 100th percentile on this benchmark
- C evidence result
Considerations
- This result measures OJBench (C++), not total model capability
Selection summary
Best AI Models for OJBench (C++)
Kimi K2.5 currently leads OJBench (C++) with 57.4%. 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 OJBench (C++)?
What OJBench (C++) measures and how its scores work.
OJBench (C++) is the C++ subset of OJBench, a competition-level code benchmark that evaluates large language models on programming competition problems from NOI and ICPC using C++ as the implementation language.
Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.
- Family
- OJBench (C++)
- Modality
- text
- Primary category
- reasoning
- Score direction
- higher
- LLMBoard eligible
- No
- Evaluation key
- ojbench-cpp|llm-stats-current
Benchmark scores retain their original unit. Overall score eligibility is shown separately.
FAQ
Common questions about OJBench (C++).
Which model scores highest on OJBench (C++)?
Kimi K2.5 is currently ranked first with 57.4%.
What does OJBench (C++) measure?
OJBench (C++) is the C++ subset of OJBench, a competition-level code benchmark that evaluates large language models on programming competition problems from NOI and ICPC using C++ as the implementation language.
Is a higher score better?
Yes. Higher values rank better for this benchmark.
How many models are compared?
1 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.