GEO Pulse #93 - August 10, 2026

Issue #93 · August 10, 2026

This Issue

• SaaS: 5.1 AI citations per answer (7.4 on Perplexity). Healthcare: just 2.4 — top 10 domains own 71% of slots
• ChatGPT ads reached $100M annualized revenue in 6 weeks — now live in the UK, Japan and Brazil next
• ChatGPT ad CTR: 0.91-1.3% vs Google's 6.4-29.2%, but AI visitors convert at 1.5x the rate
• ChatGPT market share fell from 76% to 53% — only 15.2% of categories have a clear brand owner

SaaS Gets 5x More AI Citations Than Healthcare — New Vertical Data Shows Where Your Industry Stands

2026 · Attrifast — 1,200-Prompt Study Across ChatGPT, Claude, Gemini & Perplexity

A 1,200-prompt study across ChatGPT, Claude, Gemini, and Perplexity found that AI citation density is not uniform — it is a vertical problem. SaaS leads with 5.1 blended citations per answer (7.4 on Perplexity alone), followed by legal (4.7), fintech (4.6), and consumer electronics (4.5). Healthcare sits at the bottom with just 2.4 citations per answer — not because AI systems ignore it, but because they concentrate health answers on a small, high-trust pool dominated by NIH, Mayo Clinic, and WebMD.

The structural difference matters more than the raw numbers. In healthcare, the top 10 domains capture 71.2% of all citation slots — breaking in requires displacing an established authority. In SaaS, the top 10 domains capture only 28.4%, with long-tail blogs and editorial reviews (G2, Wirecutter) accounting for 22.3% and 19.3% of citations respectively. Perplexity cites 2.1x more URLs than ChatGPT and 2.7x more than Gemini, making it the highest-ceiling platform for brands outside the healthcare oligopoly. Overall citation density rose 28% from May 2025 to May 2026, with Claude growing fastest at +50%.

Read the full study →

ChatGPT Ads Hit $100M and Expand to Europe — Organic Citations Are Now the One Slot You Can't Buy

June 2026 · Cicero Studio

OpenAI launched ChatGPT advertising in the UK on June 6, 2026 — its first European market — following a US pilot on February 9 that generated $100 million in annualized revenue within six weeks. Japan, South Korea, Brazil, and Mexico are next. The ad product targets Free and Go plan users only; all paid tiers remain ad-free. The CPM is reported at $60 — triple Meta's rate — with over 600 advertisers in active campaigns.

The competitive implication is structural: once paid placements enter AI-generated answers, organic citations become the only position competitors cannot purchase. Brands already organically cited before ads launched in their market retain unpaid positioning alongside paid placements from better-funded competitors. Brands that haven't established organic presence yet face a narrowing window — once a market's paid landscape hardens, building organic citability from zero becomes more expensive, not less.

Full analysis →

ChatGPT Ads Performance

ChatGPT Ads Have 1.3% CTR But 1.5x Conversion — What the Numbers Actually Mean for AEO

Early ChatGPT ad CTRs run 0.91%-1.3% — far below Google Search benchmarks of 6.4%-29.2%. But AI platform visitors convert at roughly 1.5x the rate of other referral channels, suggesting higher purchase intent per click. Self-serve access opened in April 2026 (removing the $200K minimum). The critical distinction for GEO: organic citations appear within ChatGPT's response body, maintaining perceived authority. Paid placements appear separately below responses — a trust gap that makes organic positioning structurally more valuable than the CTR comparison suggests.

Gigawatt GEO Report

ChatGPT's Share Fell From 76% to 53% — And Only 15% of Categories Have a Clear Brand Owner

Gigawatt Group's 2026 GEO Report finds ChatGPT's market share dropped from ~76% to ~53% over one year, with Gemini reaching 27-28% and Claude approaching 9%. Of 1,094 US categories analyzed, only 15.2% had a clear brand owner in AI responses. 31.2% showed emerging leaders, and 53.7% remained fully contested. The opportunity: category owners retain their position at 90.4% month-over-month — but 85% of categories are still open. Also notable: 95% of ChatGPT users still rely on Google, confirming that search and AI function as a single discovery journey.

Navarro's Take

"The vertical citation data changes the question every brand should be asking. It's not 'how do I get more AI citations' — it's 'given my industry's citation concentration, what's my realistic ceiling?' A healthcare brand competing for 2.4 citations per answer, where the top 10 domains own 71% of slots, needs a completely different strategy than a SaaS brand where the top 10 own 28% of a much larger pie. Layer in the platform fragmentation — ChatGPT at 53% and falling — and the implication is clear: a single-platform GEO strategy is already a half-coverage strategy. With 85% of categories still contestable, the window is there. But it won't be for long."

— Ido Navarro, LLMagnet

GEO Pulse is published by LLMagnet.
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