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CodeMMLU: A Multi-Task Benchmark for Assessing Code Understanding & Reasoning Capabilities of CodeLLMs

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arxiv 2410.01999 v4 pith:6UOJ7OL3 submitted 2024-10-02 cs.SE

classification cs.SE
keywords codecodemmlugenerationreasoningunderstandingacrossbenchmarkcodellms
verification ladder T0 review T1 audit T2 compute T3 formal
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Recent advances in Code Large Language Models (CodeLLMs) have primarily focused on open-ended code generation, often overlooking the crucial aspect of code understanding and reasoning. To bridge this gap, we introduce CodeMMLU, a comprehensive multiple-choice benchmark designed to evaluate the depth of software and code comprehension in LLMs. CodeMMLU includes nearly 20,000 questions spanning diverse domains, including code analysis, defect detection, and software engineering principles across multiple programming languages. Unlike traditional benchmarks that emphasize code generation, CodeMMLU assesses a model's ability to reason about programs across a wide-range of tasks such as code repair, execution reasoning, and fill-in-the-blank challenges. Our extensive evaluation reveals that even state-of-the-art models struggle with CodeMMLU, highlighting significant gaps in comprehension beyond generation. By emphasizing the essential connection between code understanding and effective AI-assisted development, CodeMMLU provides a critical resource for advancing more reliable and capable coding assistants.

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Cited by 4 Pith papers

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

  1. RepoReasoner: Evaluating Repository-Level Code Reasoning Ability of Long-Context Language Models

    cs.SE 2026-07 conditional novelty 7.0 of 10

    RepoReasoner is a repository-level code-reasoning benchmark with output-prediction and call-chain tasks; the best LLM reaches only 69.1% Pass@1 even with oracle context, with low recall in dependency tracing.

  2. FrontendBench: A Benchmark for Evaluating LLMs on Front-End Development via Automatic Evaluation

    cs.SE 2025-06 conditional novelty 6.0 of 10

    A new benchmark adds 148 interactive front-end development tasks with automated sandbox tests, reporting a 90.54% agreement rate with human evaluation across four LLMs.

  3. Code Reasoning for Software Engineering Tasks: A Survey and A Call to Action

    cs.SE 2025-06 conditional novelty 5.0 of 10

    A survey of test-time reasoning methods for code tasks, with a taxonomy and comparisons showing that structure-aware and execution-aware approaches tend to outperform plain chain-of-thought.

  4. A Comprehensive Survey of Deep Research: Systems, Methodologies, and Applications

    cs.AI 2025-06 conditional novelty 4.0 of 10

    A survey of 80+ Deep Research systems that proposes a four-layer taxonomy (foundation models, tool use, planning, synthesis) and compares commercial and open-source implementations.

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