Research
What we measure about AI-search citation.
A roughly monthly dispatch, each a dated snapshot of one finding from our hand-run citation probes across ChatGPT, Perplexity, Claude, Copilot, and Gemini. The live per-term data lives on the Observatory; these pages are the narrative analysis. Follow via RSS or email.
Dispatches
- Dispatch #3 · Cited more on Gemini, less on ChatGPT: a gradient, and what it is notOur pages show up as AI sources far more often on Gemini than on ChatGPT. The tempting read is that Gemini likes our content better. After checking who else each engine could have cited, our probes suggest something narrower and partly still-confounded: a willingness to credit the source that coined a term.
- Dispatch #2 · Google caught up: the AI-citation gap looks like a reporting lagLast month, AI engines cited a page Google's index report showed as unindexed. We said we would track whether Google caught up. It did, and the best-supported reading is a reporting lag, with Gemini as the clock that nearly proves it.
- Dispatch #1 · AI engines cited this page before Google indexed itThree AI engines cited our citation-precision page while Google Search Console still showed it unindexed. An honest look at the co-occurrence, with caveats.