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Reddit's share of ChatGPT Search citations collapsed 95% in one week in August 2026. Qwairy's citation data reveals the mechanism: a query fan-out change on August 8 that switched ChatGPT to direct site: interrogation, redistributing citations from discussion platforms to official sources.
Qwairy maps when ChatGPT Shopping appears across 100,000+ monitored runs. A matched test found appearance rates ranging from 21.7% to 96.7%.
For 72 of 139 eligible product-brand domains, the recorded brand domain never appeared among 22,115 identifiable ChatGPT shopping destinations.
A Qwairy research study on how AI answer engines frame the 2026 World Cup winner, where they agree, where answers become volatile, and what marketers can learn from AI perception mapping.
We measured how AI engines END their answers on the commercial questions brands compete on: how often the engine closes by offering to keep going ("If you want, I can narrow this down by budget, region, use case"). Measured across the major AI engines we monitor over a 90-day window.
We tested the assumption behind Google's "AI optimization is just SEO" guidance: do the domains cited by Google AI match those cited by ChatGPT, Perplexity, Claude and the rest on the same question? They barely do - cross-engine overlap runs 4-19% (Jaccard), and the single top source matches 4-13% of the time. Measured across eight major AI surfaces on production brands, every prompt run repeatedly, over a 90-day window.
Two structural reasons a single AI visibility check misleads, both visible in Google's numbers. (1) Google is not one AI surface but two - AI Overview and AI Mode - which behave like opposites: AI Mode is ~4x longer, names 2x more competitors, cites 1.7x more sources. (2) Neither surface is deterministic: ask the same question again and the brand-mention verdict flips on ~1 in 4 questions, and ~2 in 3 of the questions where the brand appears at all. Same instability on ChatGPT and Perplexity.
On May 7, 2026, ChatGPT started embedding clickable links to brands' own sites inside its answers. A study of 140,000+ ChatGPT answers: the rate jumped roughly 14× overnight, every link carries a utm_source=chatgpt.com tag, and only ChatGPT moved.
A qualitative study on 150 French unbranded prompts across 9 intent typologies. Why brand-owned editorial dominates 76% of AI citations, how negative framing wipes out official sources (×18), and what GEO teams should do about it.
Top AI brand monitoring tools in 2026 reviewed. Track brand mentions in ChatGPT, Gemini & Perplexity. Compare features, pricing & LLM visibility trackers.
The definitive guide to measuring AI visibility. Core metrics, industry benchmarks from 500+ brands, advanced insights, and actionable optimization strategies for ChatGPT, Claude, Perplexity, and other AI platforms.
Analysis of 102,018 AI queries reveals the truth: query fan-out varies by provider. Perplexity: 70.5% single-query. ChatGPT: 32.7% single-query. This provider-specific behavior is the hidden factor determining who wins in AI search.