Replication package for "Not All AI Code Is Equal" — a multi-model comparison of defects, vulnerabilities, and complexity in human- and AI-generated code. Runs Pylint/PMD, Semgrep, and Lizard analyses over 500 Python & Java tasks each from Claude Opus 4.8, Gemini 2.5 Pro, and Qwen2.5-Coder vs. human code.

This repository allows the replication of our study "Human-Written vs. AI-Generated Code: A Large-Scale Study of Defects, Vulnerabilities, and Complexity" accepted for publication at The 36th IEEE International Symposium on Software Reliability Engineering (ISSRE 2025).