The State of AI Search 2026: Which Brands Do the Engines Cite?

In most tracked categories the top three brands captured a modeled majority of citations across the five engines. In sports betting, DraftKings (100) and FanDuel (98) are effectively tied at the top, with BetMGM third at 78.

The brand cited first inside AI answers tends to capture more buyer-research mindshare than its citation rate alone would predict, a self-reinforcing dynamic that compounds quarter over quarter.

In the modeled source mix, editorial sources make up 41% of Perplexity citations but 26% of Gemini's, and research and analyst sources are 22% of Claude's mix versus 6% to 10% on the other four engines. Single-engine optimization leaves citation share unclaimed.

Community content is a modeled 16% of Perplexity citations and 14% of ChatGPT's, against 7% in Google AI Overviews. In skincare, The Ordinary and CeraVe rank third and fourth in citation share largely on Reddit sentiment.

Best-in-class brands draw a modeled 30% to 40% of their citations from editorial sources, against 10% to 15% for underperformers. Independent third-party validation outperforms owned content as a citation input.

Most leading brands now have comprehensive schema deployments. Absence is a critical gap and presence is table stakes. The next-frontier signal is structured citation density across third-party sources.

In 5W's modeling, brands that paused earned media and structured-content investment lost modeled citation share, typically visible within 60 to 120 days and before traditional brand-health metrics reflected it. AI visibility is not a one-time investment.

Modeled operator citation rates run from 6% (locksmith) to 18% (dental), while directories and marketplaces take 70% to 90% of answers. Most local businesses are not cited at all.

Peec's April 2026 study of 500,000 prompts found Google AI Overviews in 86.7% of searches in its sample, up from 56.9% a year earlier, and other trackers report lower rates depending on method. Brands optimized only for click-through rate are increasingly invisible to a growing share of buyers.

Across the trailing twelve-month sampling window, quarterly snapshots show brands at the top of category rankings extending their lead while challengers without active GEO programs lost ground. The pattern points to a citation flywheel that is accelerating, not flattening.

Market sizing, engine adoption, the shift from blue-link search to synthesized answers, and what the data shows about how buyers research today versus three years ago.

8 pages

ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews: citation behavior, source preferences, retrieval logic, and category strengths.

7 pages

How citation share replaces traditional share-of-voice and share-of-search. The 5W AI Visibility Index methodology and what it reveals about category leadership.

6 pages

Citation leadership patterns across eight categories: Beauty, Crypto, Wedding, Local Services, Pickleball, Sports Betting, B2B SaaS, and Health & Wellness.

12 pages

Earned media, Reddit, analyst coverage, structured data, community content: what AI engines actually retrieve and how brands should weight investment across sources.

7 pages

The strategic distinction between optimizing for generative engines (GEO) and answer-extraction surfaces (AEO), with prescriptive frameworks for each.

5 pages

The gap facing local services operators across HVAC, plumbing, dental, funeral, car wash, and home services. What is working and what is not.

6 pages

5W's 90-day, 6-month, and 12-month playbook for brands competing on the AI answer surface, with budget heuristics by activity.

8 pages

Methodology disclosure, scoring framework, statistical notes, and a glossary of every term used in the report.

3 pages

Embargoed access, expert interviews, custom data cuts for editorial projects, and standing briefings for tech and marketing trade press.

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Custom briefings for industry analysts and research firms covering AI, search, marketing technology, and communications.

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5W research leads are available to present findings at conferences, client events, and industry gatherings. Topics span AI visibility, GEO, AEO, and category-specific data.

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Explore the category-level benchmarks that feed the State of AI Search annual report, including citation share rankings across consumer and B2B markets.

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Read the 5W Generative Engine Optimization glossary for the terms, measurement framework, and source-authority concepts used throughout the report.

Read the GEO Glossary → →

Compare GEO with Answer Engine Optimization and the direct-answer surfaces reshaping Google AI Overviews, featured snippets, and zero-click discovery.

Read the AEO Glossary → →