As AI-driven platforms like ChatGPT and Google’s AI Mode rapidly transform the way information is discovered. Brands face a shifting landscape in digital marketing. While some businesses see a drop in organic traffic and revenue, others are strategically optimising for these new AI-powered search channels to boost their visibility and growth. To help businesses understand how AI is reshaping search, Semrush Enterprise has introduced the AI Visibility Index, a comprehensive study tracking brand performance across major AI search engines.
Key Insights from the AI Visibility Index

The AI Visibility Index examines how brands fare in AI responses, focusing on five key industries:
- Business & Professional Services
- Digital Technology & Software
- Consumer Electronics
- Fashion & Apparel
- Finance
The research covers 2,500 real-world prompts analyzed across both ChatGPT and Google AI Mode, revealing which brands dominate AI search and why. The findings emphasize a new hierarchy of visibility, where mentions in AI-generated answers significantly impact brand awareness and purchase intent.
Here are the main takeaways:
- SEO ≠ AI Visibility: Ranking high on Google no longer guarantees visibility in AI results. AI models prioritize structured data, transparent pricing, and strong third-party validation.
- Mentions ≠ Sources: Brands that are cited in AI-generated answers gain far more visibility than those only used as data sources.
- The Power of Iconic Brands: Companies like Patagonia and Garmin lead by consistently showcasing structured visibility signals in their niche.
- User-Generated Content (UGC): Reviews, forums, and user conversations now drive AI search visibility, making UGC a critical factor for brand success.
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This research reveals how AI models determine which brands to highlight, providing marketers with a data-backed strategy for enhancing AI visibility. With the AI Visibility Index, Semrush offers a valuable blueprint for brands to optimise their AI presence and stay ahead in an ever-evolving search landscape.
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