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Assessing Small Language Models for Code Generation: An Empirical Study with Benchmarks
DOI:10.1016/j.jss.2026.112815.png)
Abstract
En 中文
• Evaluated 20 open-source Small Language Models (SLMs) on five code generation benchmarks, covering tasks such as code synthesis, summarization, and repair. • Identified that several compact SLMs (-<3B parameters) achieve competitive performance with lower resource requirements, making them suitable for deployment in memory-constrained environments. • Larger SLMs offer higher accuracy but demand up to 4 times more resources (VRAM) for a 10% improvement in pass@1, highlighting clear performance efficiency tradeoffs of SLMs. • No statistically significant performance differences across programming languages, suggesting SLMs, generalizability in multilingual code generation tasks within the programming languages tested in the study.
Keywords:
Small Language Models
Code Generation
Empirical Study
Benchmarks
Software Engineering
Generative AI
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