reasoning benchmark
CRUXEval-Input-CoT is a CRUXEval task that uses Chain of Thought (CoT) prompting to predict the appropriate input for a Python function from its expected output.
Updated Sep 5, 2026
Higher score ranks better on this benchmark.
Rank | Model | Score | Percentile | Participants | Evidence | Evaluated |
|---|
| Rank01 | ModelAC | Score56.50% | Percentile100.00% | Participants1 | EvidenceC | Evaluated |
The leading models and scores on this benchmark.
The first five results on this benchmark, with official price and output speed added where the model identity can be matched.
Ranking basisThis cruxeval-input-cot AI model leaderboard uses descending score in the benchmark original unit. The leaderboard ranking keeps matched price and speed data separate from benchmark evidence.
Selection summary
Qwen2.5-Coder 7B Instruct currently leads CRUXEval-Input-CoT with 56.50%. 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 CRUXEval-Input-CoT measures and how its scores work.
CRUXEval-Input-CoT is part of the CRUXEval benchmark and consists of 800 Python functions, each 3-13 lines long, for code reasoning, understanding, and execution evaluation.
It measures performance in predicting the appropriate input for a given Python function and expected output using chain-of-thought reasoning, reported as a Score ratio.
Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.
LLM Stats. Benchmark scores retain their original unit. Overall score eligibility is shown separately.
Common questions about CRUXEval-Input-CoT.
Qwen2.5-Coder 7B Instruct is currently ranked first with 56.50%.
The current leaders are Qwen2.5-Coder 7B Instruct (56.50%).
Qwen2.5-Coder 7B Instruct has the lowest matched official input price at $0.14 input / $0.29 output per 1M tokens.
No matched runtime record is currently available.
No. This benchmark measures one defined capability or task. The overall LLMBoard score uses a separate aggregation across eligible benchmark evidence.
It measures performance in predicting the appropriate input for a given Python function and expected output using chain-of-thought reasoning, reported as a Score ratio.
Yes. Higher values rank better for this benchmark.
1 model results are currently shown.
No. This benchmark is shown for reference but does not contribute to the overall score.