What Separates Brands Gaining AI Visibility From Those Losing It? A 4,670-Brand Study
We tracked 4,670 brands over four months to find which signals moved with AI visibility growth. Citation share showed a 0.41 correlation with visibility change.
That brand holding #1 in AI search? It rotates out 52% of the time.See the data →
Data & Studies
Original Writesonic research on AI search behavior and citation patterns.
Recent articles on Data & Studies
Who Loses When You Win in AI Search? A Study of 10.7 Million Answer Changes
We analyzed 10.7 million AI answer changes to understand brand displacement in AI search. In 90% of brand entries, at least one other brand left.
Do AI Engines Cite the Same Sources? We Studied 161,286 Prompts Across 4 Platforms
We ran 161,286 prompts through ChatGPT, Gemini, Perplexity, and Google AI Overviews and measured how much their citation pools overlap.
The Brand at #1 in AI Search Changes 52% of the Time. We Ran 631,999 Prompts to Measure It.
We ran 631,999 prompt-model pairs across 7 AI platforms, from March through June 2026, each prompt repeated a minimum of 10 times.
GPT-5.6 Sol Runs site: Queries on 71% of Its Searches. GPT-5.5 Did 11%.
GPT-5.6 Sol reverses the biggest finding of the GPT-5.5 era: the site: operator is back, on up to 71% of searches. Brand citations, freshness, and answer length all moved with it.
Which Sources Influence AI Answers? 2,000+ Brand Study
We measured citation influence across 2,000+ brands. YouTube (3.19x), Reddit (3.17x), and Gartner (3.15x) deliver 3x lift. Your own website? Just 1.3x.
ChatGPT Ads Went From 0.03% to 14% Overnight. 47.7% of US Responses Now Carry One
We measured ChatGPT ad penetration across 363,129 responses over 31 days. For 30 of those days, ads were a rounding error. On day 31, the surface flipped.
GPT-5.5 Instant vs GPT-5.3 Instant: Brand Citations Drop 55%, Reddit Becomes ChatGPT’s Top Source
ChatGPT replaced GPT-5.3 with GPT-5.5 as its free-tier default in early May. The data shows brand citations halved, Reddit became the most-cited domain by a 3x…
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