How ChatGPT retrieves in 2026: the engine, Reddit, review sites and the vendor-site rule discoveredlabs.com

We captured ChatGPT’s retrieval traffic across a B2B SaaS prompt set and measured 291,607 citations between October 2025 and August 2026. Docs pages went from 36.9% to 55.1% of ChatGPT’s citations while listicles fell from 6.0% to 1.0%, and pricing questions now cite vendor pages only. ChatGPT now favors a company’s own site at every stage of retrieval, from the search plan through to the citation. Google AI Mode, Gemini and Claude have not moved, where listicles and comparisons still carry 30 to 50% of citations on list-shaped prompts. Reddit is still retrieved on about a quarter of search turns, but only on opinion-shaped questions, and once read it is cited at the same per-page rate as any other source. Full method and limits included.