Moreover, the study highlights a 9× visibility gap between brands optimized for AI visibility and those not optimized, underscoring the importance of AI-focused visibility.

For brands, the takeaways are clear: optimize for AI signals, ensure factual clarity, maintain consistent branding, and keep information up-to-date to improve AI inclusion and conversion.

AI systems rely on signals different from traditional search; ranking top on Google does not guarantees AI visibility or recommendation.

A six-month study tracked 500+ brands across AI platforms like ChatGPT, Claude, Gemini, and Perplexity, finding that traffic driven by AI recommendations substantially boosts purchase likelihood—3 to 6 times higher than conventional Google search.

The Erlin.ai research also shows brands discovered via AI recommendations convert at 3 to 6 times the rate of those found through standard search.

Industry sentiment shows most marketers are unsure how to measure AI visibility (67%), lack internal ownership (58%), or do not actively monitor AI mentions.

Five structural signals boost AI recommendations: clear, specific facts; independent third-party mentions; AI-accessible website structure; recently updated information; and consistent brand details across platforms.

Projections suggest AI-based recommendations will dominate, with AI handling about 75% of Google searches by 2028, potentially routing up to $750 billion in US revenue to AI-driven recommendations.

AI search is emerging as a measurable performance layer distinct from SEO, as consumer search shifts from traditional engines toward AI-driven results.

Only around 15% of brands capture more than 80% of high-converting AI recommendations, reinforcing the 9× visibility gap between optimized and non-optimized brands.

Key organizations cited include Erlin.ai as the study issuer, with McKinsey providing cited research, and the evaluated AI platforms (ChatGPT, Claude, Gemini, Perplexity).

The State of AI Search 2026 report from Erlin.ai, along with its platform, aims to help brands discover, cite, and optimize content for AI search engines and explains how AI selections influence purchase journeys.