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Bibliographic Details
Main Authors: Robeyns, Maxime, Aitchison, Laurence
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2506.02211
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Table of Contents:
  • Large Language Models (LLMs) are gaining widespread use for code generation. Recent training procedures use execution feedback as a reward signal, typically focusing on the functional correctness of the code, using unit test pass rate as a reward signal. However, this reward signal fails to capture notions of maintainability, quality and safety of the code produced. We address this under-explored area and develop a comprehensive library to quantify various aspects of code quality, and use it as a reward in GRPO. We find GRPO increases code quality according to this measure, which is confirmed by expert, blinded human annotators.