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LLMs Overconfident in Secure Code Generation, Study Finds

By PulseAugur Editorial · [1 sources] ·

A new study on arXiv investigates the security calibration of large language models (LLMs) when generating code. Researchers evaluated GPT-4o-mini, Gemini-2.0 Flash, and Qwen3-Coder-Next, finding that these models often exhibit overconfidence, assigning high confidence to insecure code. The study also explored calibration-guided automated repair, which showed limited success in fixing vulnerabilities without introducing functional regressions. Mitigation strategies like architectural gating improved calibration on controlled benchmarks but proved less effective in realistic repository settings, increasing the risk of high-confidence vulnerable outputs. AI

IMPACT Highlights potential risks of using LLMs for security-critical code generation and the need for better calibration.

RANK_REASON Academic paper on LLM security calibration. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.LG →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

LLMs Overconfident in Secure Code Generation, Study Finds

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Academic paper on LLM security calibration. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.LG TIER_1 English(EN) · Mohammed Latif Siddiq, Md. Nafiu Rahman, Joanna C. S. Santos ·

    An Empirical Study of Security Calibration in Large Language Models for Code

    arXiv:2606.31159v1 Announce Type: cross Abstract: Large Language Models (LLMs) are rapidly transforming software development, yet their use in security-critical contexts raises a key question: do models know when their generated code is insecure? This property, known as calibrati…

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