Why Every AI-Built App Looks the Same

Vibe coding is technical debt at scale. The rewrite is coming. I was asking myself this question for quite a while, it's like we all have the same Architect, so I ran an experiment across six frontier AI models to see what happens when you ask them to design software architecture versus when you ask them to help build the project. 144 prompts. Four different systems. Three prompt styles. When asked to design architecture, the models recommended Rust, Aerospike, ClickHouse, event streaming systems. When asked to help build the same systems, those choices vanished.