Labs

We run experiments on what AI actually cites.

Every post is one controlled experiment across ChatGPT, Claude, Perplexity, Gemini and Google AI Overviews — the hypothesis, the method, the surfaces tested, and the measured result. Real data, survived a skeptic's review before we published it.

Experiment

Five AI Engines, One Question: Do They Cite the Same Sources?

We asked ChatGPT, Claude, Perplexity, Gemini and Google AI Overviews the same buyer questions and counted every domain each one cited. They don't agree — but they're not strangers either. Here's the data.

24 June 2026 · 6 min read