DevBench: A Realistic, Developer-Informed Benchmark for Code Generation Models

Fuente: arXiv
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Auteurs principaux: Kumarappan, Adarsh, Golnari, Pareesa Ameneh, Wen, Wen, Liu, Xiaoyu, Ryan, Gabriel, Sun, Yuting, Fu, Shengyu, Nallipogu, Elsie
Format: Preprint
Publié: 2026
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author Kumarappan, Adarsh
Golnari, Pareesa Ameneh
Wen, Wen
Liu, Xiaoyu
Ryan, Gabriel
Sun, Yuting
Fu, Shengyu
Nallipogu, Elsie
author_facet Kumarappan, Adarsh
Golnari, Pareesa Ameneh
Wen, Wen
Liu, Xiaoyu
Ryan, Gabriel
Sun, Yuting
Fu, Shengyu
Nallipogu, Elsie
contents DevBench is a telemetry-driven benchmark designed to evaluate Large Language Models (LLMs) on realistic code completion tasks. It includes 1,800 evaluation instances across six programming languages and six task categories derived from real developer telemetry and synthesized using generator models from multiple provider families to mitigate single-source bias. Unlike prior benchmarks, it emphasizes ecological validity, avoids training data contamination, and enables detailed diagnostics. The evaluation combines functional correctness, similarity-based metrics, and LLM-judge assessments focused on usefulness and contextual relevance. 9 state-of-the-art models were assessed, with the strongest achieving only 43.5% Pass@1, confirming the benchmark remains challenging and revealing differences in syntactic precision, semantic reasoning, and practical utility. Our benchmark provides actionable insights to guide model selection and improvement, detail that is often missing from other benchmarks but is essential for both practical deployment and targeted model development.
format Preprint
id arxiv_https___arxiv_org_abs_2601_11895
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle DevBench: A Realistic, Developer-Informed Benchmark for Code Generation Models
Kumarappan, Adarsh
Golnari, Pareesa Ameneh
Wen, Wen
Liu, Xiaoyu
Ryan, Gabriel
Sun, Yuting
Fu, Shengyu
Nallipogu, Elsie
Machine Learning
Artificial Intelligence
Software Engineering
DevBench is a telemetry-driven benchmark designed to evaluate Large Language Models (LLMs) on realistic code completion tasks. It includes 1,800 evaluation instances across six programming languages and six task categories derived from real developer telemetry and synthesized using generator models from multiple provider families to mitigate single-source bias. Unlike prior benchmarks, it emphasizes ecological validity, avoids training data contamination, and enables detailed diagnostics. The evaluation combines functional correctness, similarity-based metrics, and LLM-judge assessments focused on usefulness and contextual relevance. 9 state-of-the-art models were assessed, with the strongest achieving only 43.5% Pass@1, confirming the benchmark remains challenging and revealing differences in syntactic precision, semantic reasoning, and practical utility. Our benchmark provides actionable insights to guide model selection and improvement, detail that is often missing from other benchmarks but is essential for both practical deployment and targeted model development.
title DevBench: A Realistic, Developer-Informed Benchmark for Code Generation Models
topic Machine Learning
Artificial Intelligence
Software Engineering
url https://arxiv.org/abs/2601.11895