AI VISIBILITY INDEX
Methodology
overview
The AI Visibility Index tracks brand mentions and source citations in 180M+ AI answers across 22 industries, 9 markets, and 4 platforms: ChatGPT, Google AI Mode, Google AI Overview, and Gemini. It draws on Semrush's AI search database of 317M+ unique prompts.
Results are shown per market and month, not as a global total. A month is included only when data is available for all four platforms, so available months vary by market.
- Business & Professional Services
- Consumer Electronics
- Digital Technology & Software
- Fashion & Apparel
- Finance
The prompt dataset
Semrush's prompt data draws on AI search clickstream data and Google's keyword dataset for AI Overviews. Prompts are deduplicated and organized by topic. The charts show results for the selected market and month.
AI search data by market and month
Best running shoes
Deduplicated with intent and semantics maintained
Best waterproof running shoes
Enhanced with Datos clickstream and Google AI Overviews keyword data
Best waterproof running shoes to buy
How we collected the data
We study which brands and sources appear in AI answers on ChatGPT, Google AI Mode, Google AI Overview, and Gemini. Each chart uses data for the selected market and month.
What we measured
Mentions
How often a brand is mentioned in AI answers.
Citations
How often a domain is cited as a source in AI answers.
Brand co-occurrence
How often two brands are named together in AI answers, relative to mentions of the selected brand. This is a ratio and can exceed 1.
Top 100 overlap
The number of entries shared by two top 100 lists. We compare mentioned brands or cited sources across two AI platforms, and cited sources with mentioned brands within one platform.
How we ranked results
Brands are ranked by mention count and sources by citation count within each market, month, industry, and AI platform. The similarity charts count entries shared by two top 100 lists. They measure overlap in membership, not similarity in rank order. Results are shown separately by platform, with no combined visibility score. Each downloadable study describes its own methodology in the report.
Managing variability
AI answers can vary. Read each month as a snapshot of the available data for that market and platform. Differences between months should not be interpreted as growth or decline in brand visibility on their own.
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