Just Use Opus (ai.nevolin.be)

A recent study tested the security performance of AI models Claude Haiku, Sonnet, and Opus against 21 typical business attacks, revealing significant disparities in their resilience to threats. The assessment involved real-world inputs like vendor forms and support tickets, where Sonnet was notably vulnerable, facing 16 breaches from simple attacks. In stark contrast, Opus demonstrated superior defense, with only five successful attacks that required complex, multi-stage setups to bypass its security measures. This finding underscores the importance of model selection in AI agent security for the AI/ML community. While architectural safeguards like write-gates and human reviews remain vital, Opus's impressive performance highlights that choosing a robust model can drastically enhance security with minimal effort. The study ultimately recommends that teams prioritize stronger model configurations as a straightforward and effective strategy, making Opus a compelling choice for organizations looking to bolster their AI defenses.