AI VisibilityIndex 2026
Explore the strategies powering today's AI search leaders and get clear steps to build your own.
AI has rewritten the rules of search.
ChatGPT, Google AI Mode, and other platforms enable discovery through conversation, not just keywords. Search engines are no longer the only path to organic visibility.
Brand Visibility Playbooks
Define your winning AI visibility strategy and start delivering measurable results.
How we track the brands AI recommends
Our AI Visibility Index reveals who's winning in AI search and how they're doing it. We analyzed 2,500 prompts and responses across 5 major industries to find:
Interested in how we created the AI Visibility Index?
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Built for brands who want to lead the AI search era. Control your visibility and eclipse competitors across markets and domains.
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These brands lead the AI search race
Brand Leaderboard
The top brands by Share of Voice, filtered by date, industry and AI platform.
Our Share of Voice (SoV) metric was updated in October 2025 to reflect prompt volume (how often a prompt is searched). All data has been updated to reflect this and the trends remain consistent.
Share of Voice
Share of Voice is a Semrush metric that takes into account how often a brand is mentioned and in what position. For example, if a brand was mentioned first in every AI answer, they would achieve an SoV of 100%
Mentions
By mentions, we mean how often a brand name is included in the actual AI answer text.
Brand Performance
The brand performance bubble chart shows how brand mentions relate to overall market share.
Our Share of Voice (SoV) metric was updated in October 2025 to reflect prompt volume (how often a prompt is searched). All data has been updated to reflect this and the trends remain consistent.
Share of Voice
Share of Voice is a Semrush metric that takes into account how often a brand is mentioned and in what position. For example, if a brand was mentioned first in every AI answer, they would achieve an SoV of 100%
Mentions
By mentions, we mean how often a brand name is included in the actual AI answer text.
THE DEFINITIVE ANALYSIS OF AI VISIBILITY
See the patterns. Spot the gaps. And learn how to lead.
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Users who search with LLMs are 4.4× more likely to convert than those using search engines.
AI-generated results are projected to overtake organic search traffic by 2028.
Every day, ChatGPT receives 2.5 billion prompts from over 190 million users.
See exactly who your brand is up against
Curious who Garmin’s top rivals are in Google AI Mode? Use our explorer to find each leading brand’s closest competitors in seconds.
Brand competitors
How often brand pairs were mentioned together in AI-generated prompts.
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Brand diversity
Brand diversity indicates the concentration and competitiveness of AI visibility. It shows how many brands make up 80% of each vertical’s total Share of Voice.
Brand Diversity
We calculate how many brands make up 80% of each vertical’s Share of Voice. We focus on the top 80% to reduce noise.
Lower number = more concentrated, less competitive (fewer brands dominate visibility)
Higher number = more diverse, more competitive (visibility is spread across more brands)
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Track brand mentions, sentiment, and competitors in real time.
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See which sources fuel the most AI answers
Want to see ChatGPT’s favorite sources for finance? Find out in seconds.
Top 10 Sources
Simply select the vertical to see the top 10 cited sources for each AI model.
These charts show the percentage of prompts featuring each source. A value above 100% means the source appears more than once per prompt on average. For example, 135% for Reddit means it appears 1.35 times per prompt.
Source
By source we mean a website domain that is used by AI search to formulate its answer (typically these are highlighted in a sidebar or listed at the bottom of an answer).
Source Diversity
How many unique sources appear in a vertical, divided by the total number of prompts.
As Semrush continues to enhance AIO, it is now capturing a broader range of sources in AI search, explaining the increase in December 2025.
Source Diversity Score
We calculate how many unique sources appear in a vertical, then divide by the total number of prompts. Example: If the same sources are cited in every prompt, the score is 1 (low diversity). If 5 different sources are cited per prompt, the score is 5 (high diversity).
Find the key sources and strategies that are shaping AI visibility in your industry.
Download the full studyHow brands compare across ChatGPT and Google AI Mode
Deep dive into the similarity of the top sources and brand mentions for each AI platform by vertical. How often do ChatGPT and Google AI Mode rely on the same sources and brands? This helps uncover how each model composes its answers.
Overlap of top 100 sources and mentions
We looked at how many of the top 100 cited sources also appeared in the top 100 mentioned brands within each AI model and vertical.
A higher number indicates greater overlap between sources and brand mentions, revealing how often trusted sources are also recognized brands that earn a mention.
Source-source overlap
We take the top 100 sources from each model and compare how similar they are.
Similarity of brand mentions
We analyzed how similar the top 100 mentioned brands are across ChatGPT and Google AI Mode, segmented by industry. This highlights the overlap between them and the need for multiple optimization strategies.
Mention-mention overlap
We take the top 100 mentioned brands from each model and compare how similar they are.
Similarity of cited sources
We compared how similar the top 100 cited sources are across ChatGPT and AI Mode, broken down by industry. This reveals whether different sources are favored and a targeted strategy is needed for each platform.
Source-source overlap
We take the top 100 sources from each model and compare how similar they are.
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Reports & Playbooks
Explore a deeper analysis and get actionable strategies on how to win in AI search.
Download for freeInterested in how we created the AI Visibility Index?
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