pilvar (Philippe Dourassov)(@pilvar222):🧵(1/6) We ran Opus 5 on our cybersecurity benchmark, here are the results: TLDR - It finds more vulnerabilities than other frontier models, slightly above GPT-5.6-sol - Opus 5 is smarter than previous generations, but also works much more than it is asked to - This "hyperactivity" symptom allows it to find more vulnerabilities, but at a cost: the results are very noisy Here are the details of our investigation👇

pilvar (Philippe Dourassov)

@pilvar222

AI Pentest Lead @AikidoSecurity

Joined October 2013

592 Following 3.9K Followers

pilvar (Philippe Dourassov)@pilvar222

2026.07.29 13:13

🧵(1/6) We ran Opus 5 on our cybersecurity benchmark, here are the results: TLDR - It finds more vulnerabilities than other frontier models, slightly above GPT-5.6-sol - Opus 5 is smarter than previous generations, but also works much more than it is asked to - This "hyperactivity" symptom allows it to find more vulnerabilities, but at a cost: the results are very noisy Here are the details of our investigation👇