AI platforms now intercept millions of buying decisions before a single search result loads. This report aggregates data from 20 published studies and over 680 million AI citations to show which industries are winning AI visibility, which are being left behind, and what determines whether your business gets cited at all.

TLDR: Healthcare leads every metric at a 48.75% AI Overview trigger rate. Finance follows at 25.79%. Real estate is dead last at 4.48% but moving fast. ChatGPT drives 87.4% of all AI referral traffic and converts at 15.9% vs Google organic's 1.76%. The businesses building citation authority now are creating a structural advantage that will be very hard to close later.

87.4% of all AI referral traffic across industries comes from ChatGPT

14.2% AI search conversion rate vs 2.8% from Google organic

48.75% of all healthcare queries return an AI-generated answer

11% domain overlap between ChatGPT and Perplexity they barely share sources

At a glance - AI citation rates by industry

Aggregated from Conductor's 2026 AEO/GEO Benchmarks Report, BrightEdge's year-long AI tracking study, The Digital Bloom's citation analysis, and 5WPR's 680 million citation index.

Platform by platform: ChatGPT vs Gemini vs Perplexity

An analysis of 680 million citations found only 11% of domains cited by ChatGPT are also cited by Perplexity. Each platform has fundamentally different citation logic, retrieval architecture, and source preferences. Optimising for one does not give you the others.

ChatGPT: 87.4% share of all AI referral traffic. 15.9% conversion rate on referred sessions. 7.92 average citations per response. Uses the Bing index. Weighs domain authority, backlinks, Wikipedia, and Reddit presence heavily. 90% of cited pages rank in Google's top 10.

Perplexity: 21.87 average citations per response, the highest of all platforms. 13.05% brand citation rate vs ChatGPT's 0.59%. 10.5% conversion rate on referred sessions. Hybrid Bing and proprietary index. 82% citation rate for content published in the last 30 days freshness is critical.

Gemini / AI Overview: 48% of all tracked queries now trigger an AIO, up from 31%. 13.7% URL overlap between AIO and Google AI Mode. 3.0% conversion rate on referred sessions. Proprietary Google index plus Knowledge Graph. Ranking on Google does not guarantee AIO appearance. Prioritises blog content, video, news, and structured data.

Claude: 18.5% of B2B AI referral traffic as of April 2026. 27.2% single-month peak B2B share in April 2026. 5.0% conversion rate on referred sessions. Uses Brave Search for real-time retrieval. Fastest-moving trend in AI referral right now. B2B share jumped from 11.8% to 18.5% in early 2026.

Conversion rate: why AI traffic is worth more

Ahrefs' internal data shows just 0.5% of total traffic from AI platforms generated 12.1% of signups in a single 30-day period. A visitor arriving from a ChatGPT citation has already been pre-qualified. They are not browsing. They are deciding.

What content gets cited: the signal hierarchy

Key finding: Reddit is the number one cited source across every major AI engine at roughly 40% citation frequency (5WPR AI Platform Citation Source Index 2026). Wikipedia accounts for 26–48% of ChatGPT's top-10 citation share. The top 15 domains capture 68% of all consolidated AI citation share. Building presence on the platforms AI trusts is as important as optimising your own website.

Industry deep dives

Healthcare: The most AI-cited industry

48.75% of all healthcare queries return an AI Overview (Conductor 2026). On informational keyword sets, BrightEdge tracking shows penetration approaching 90%. Mayo Clinic dominates with a 14.1% visibility score and 3.4% share of voice across platforms. Cleveland Clinic and Johns Hopkins follow. The lesson: depth, accuracy, and clear factual structure are the citation signals that matter most.

Finance: Highest citation volatility, biggest upside

Finance triggers AI Overviews on 25.79% of queries and has the highest week-to-week citation volatility — meaning rankings shift frequently and the window to establish authority is still open. NerdWallet captures 6.73% of financial AI citations, outperforming traditional banks. Bank of America leads banking brand mentions at 32.2% visibility across AI platforms (Amsive 2026). Digital-first content brands are out-citing established institutions.

B2B Technology and Insurance: Near-critical penetration

IT companies see 2.8% of their total website traffic already arriving from AI referrals — the highest proportion of any tracked industry (Conductor 2026). BrightEdge data shows B2B tech and insurance informational queries approaching 90% AI Overview penetration. These industries are already past the early-adopter window for AEO.

Real Estate: Dead last, but moving fast

Luxury real estate has the lowest AI Overview trigger rate of any major US industry at just 0.14%, while the broader sector sits at 4.48% (5WPR / Haute Residence 2026). Yet 82% of real estate agents now use AI tools daily. Zillow launched a ChatGPT integration in October 2025. Redfin followed in November 2025. Businesses that establish citation authority now will own this channel before the rest of the industry acts.

Stats that should change your priorities

• AI referral traffic to US retail sites grew 693% year over year during the 2025 holiday season (Omnibound 2026)

• AI Overviews grew 58% year-over-year, from 31% to 48% of all tracked queries (BrightEdge Feb 2026)

• Organic CTR dropped 61% on queries where AI Overviews appear — from 1.76% down to 0.61% (Seer Interactive via The Digital Bloom)

• Brands cited in AI Overviews earn 35% higher organic CTR and 91% higher paid CTR vs uncited brands on the same queries (Seer Interactive 2025)

• 65% of AI bot hits target content published in the past year — freshness is a structural signal (Seer Interactive via The Digital Bloom)

• On February 9, 2026, OpenAI launched paid advertising inside ChatGPT for the first time — AEO is now the organic foundation for paid AI visibility (QuickSEO.ai 2026)

• 25.7% of marketers have already begun producing content specifically for AI citations (Exposure Ninja 2026)

• 38% of business decision-makers have allocated budget to AI search optimisation (Exposure Ninja 2026)

How Sarac Ramsay approaches AEO

Most agencies are not offering AEO yet. The ones that are typically lack a reliable way to measure it — standard analytics platforms do not capture AI citation data. You cannot see in Google Analytics whether ChatGPT is recommending you or ignoring you.

We track AI visibility using in-house tools and processes built specifically for citation monitoring across ChatGPT, Gemini, and Perplexity. Before taking on any AEO project, we run a full benchmark to establish where a business currently stands and what the realistic citation opportunity looks like in their sector.

AEO is a qualification-based service. It requires a strong SEO foundation before it can work. If that foundation is not in place, we will say so and outline what needs to happen first.