5 top AI models told me my smart contract was flawless. Then I made them work together — and they found 4 critical bugs.

I spent weeks auditing the smart contracts behind my Web3 banking project, SovereignBank Web3, the way most people audit code with AI today: one model at a time.

I ran the contracts through Claude Opus, Gemini Ultra, ChatGPT, DeepSeek and Grok — individually. Each one found small issues. I fixed them. I ran another pass. More small fixes. I did this thirteen times.

By the end, every single model agreed: the contract was clean. "No critical vulnerabilities." "Well-structured." "Production-ready." Five of the best AI models on the planet, in agreement.

They were wrong. And I only found out because I stopped asking them one at a time.

The experiment