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LeetCodeDataset: A Temporal Dataset for Robust Evaluation and Efficient Training of Code LLMs

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arxiv 2504.14655 v1 pith:6VQMPOHQ submitted 2025-04-20 cs.LG cs.CLcs.SE

LeetCodeDataset: A Temporal Dataset for Robust Evaluation and Efficient Training of Code LLMs

classification cs.LG cs.CLcs.SE
keywords datasetevaluationtrainingcounterpartsefficientleetcodedatasetmodelstemporal
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We introduce LeetCodeDataset, a high-quality benchmark for evaluating and training code-generation models, addressing two key challenges in LLM research: the lack of reasoning-focused coding benchmarks and self-contained training testbeds. By curating LeetCode Python problems with rich metadata, broad coverage, 100+ test cases per problem, and temporal splits (pre/post July 2024), our dataset enables contamination-free evaluation and efficient supervised fine-tuning (SFT). Experiments show reasoning models significantly outperform non-reasoning counterparts, while SFT with only 2.6K model-generated solutions achieves performance comparable to 110K-sample counterparts. The dataset and evaluation framework are available on Hugging Face and Github.

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Cited by 21 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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