AI model 'personalities' shape the quality of generated code

AI coding models show different "personalities" that affect their output quality. The five tested models—Claude Sonnet 4, Claude 3.7, GPT-4o, Llama 3.2, and OpenCoder-8B—scored between 95% and 61% on benchmarks but all generated alarming security vulnerabilities. Despite their strengths in code generation, these models create dangerous flaws like injection vulnerabilities and hard-coded credentials, highlighting the necessity of human oversight.