How does Claude code security compare to ChatGPT?

Independent benchmarks suggest Claude tends to generate code with fewer security vulnerabilities compared to ChatGPT, particularly in areas like input validation and SQL query construction. Claude more consistently uses parameterized queries and includes basic error handling without being explicitly prompted to do so. However, both models share fundamental limitations: they generate code based on patterns rather than security reasoning, they lack awareness of your deployment context, and they cannot verify their output is secure. The gap between the models is smaller than the gap between either model and properly reviewed human-written code. UNPWNED applies the same bounded outside-in checks regardless of which AI tool was used to build the deployed application.