AI Search Trends

State of AI Search: Mid-2026 Synthesis

Genmark AI Team15 min readPublished June 22, 2026
AI SearchGEOAEOAI OverviewsPerplexityChatGPTBrand VisibilityAI ModeState of Search 2026

We are six months into 2026 and the evidence is no longer directional. It is structural. AI search has crossed the threshold from challenger to infrastructure. The platforms, user counts, and behavioral data gathered in H1 2026 confirm that brand visibility now operates across two parallel systems: the traditional web index that Google has managed for 25 years, and the generative layer that eight AI engines are building on top of it.

If you are managing search visibility for a brand, an agency, or a B2B product, the H1 data has one clear message: optimizing for one system while ignoring the other is now a material business risk.

This synthesis covers the verified H1-2026 platform numbers, the structural shifts they reveal, and the practitioner moves that matter in H2.

The Platform Numbers: H1 2026

ChatGPT

OpenAI's February 2026 announcement confirmed ChatGPT at 900 million weekly active users, more than double the 400 million reported in February 2025. Paid demand spread across more than 50 million consumer subscribers and more than 9 million paying business users.

In June 2026, Reuters reported Sensor Tower estimates that the ChatGPT app passed 1 billion global monthly active users in May, making it the fastest app in history to reach that milestone. That is not a pace a traditional media or SaaS product has ever matched.

For marketers, the implication is straightforward: ChatGPT is no longer a productivity tool used by early adopters. It is a primary information surface used by a meaningful slice of any B2B or B2C audience.

Sources: OpenAI, Scaling AI for everyone (February 27, 2026), TechCrunch, ChatGPT reaches 900M weekly active users, Engadget, ChatGPT reaches 400M weekly active users (February 20, 2025), Reuters via MarketScreener, ChatGPT app hits 1 billion monthly active users in record time (June 2, 2026)

Google: AI Overviews and AI Mode

Google did not stand still. At Google I/O in May 2026, the company announced that AI Overviews now reach 2.5 billion monthly users.

The more significant announcement was AI Mode. One year after its debut, AI Mode surpassed 1 billion monthly users, with queries more than doubling every quarter since launch. Google is now running Gemini 3.5 Flash as the default model inside AI Mode globally. The product is no longer experimental: it is the default search experience for a billion people.

Shopping queries are feeling the structural shift most acutely. The traditional product-listing model of SEO is being supplanted by a recommendation layer that selects products based on structured feed quality, not keyword density.

Sources: Google I/O 2026 blog, Sundar Pichai, Google I/O 2026 keynote

Gemini

At Google I/O 2026, Google confirmed that the Gemini app's monthly active users grew from 400 million in 2025 to over 900 million, more than doubling year-over-year, with daily requests increasing sevenfold. The Gemini app is now near-ubiquitous across Android and the broader Google product surface: Workspace, Search, Chrome, and Pixel devices all route queries through it.

For brands operating in B2B or enterprise contexts where Google Workspace is standard, Gemini's distribution advantage is significant: it is already embedded in the tools where buying decisions are researched.

Source: Google I/O 2026, CTO Magazine coverage, Sundar Pichai, Google I/O 2026 keynote

Perplexity

Perplexity received 780 million queries in May 2025, according to CEO Aravind Srinivas, who reported more than 20% month-over-month growth at the time. The company has not published a comparable 2026 query count, and third-party estimates of its 2026 queries, users, and revenue vary widely.

Perplexity's importance to brand visibility is disproportionate to its user count. Its citation model is explicit: it surfaces sources inline and trains users to trace claims back to original content. Brands that earn Perplexity citations see a different quality of exposure than a Google ranking. The user arrives already having read the summary and actively seeking depth or authority confirmation.

Source: TechCrunch, Perplexity received 780 million queries last month, CEO says (June 5, 2025)

The Behavioral Shifts That Follow the Platform Numbers

Most Adults Now Use AI to Find Information

An AP-NORC poll published in July 2025, drawn from NORC's probability-based AmeriSpeak panel, found that 60% of US adults use AI to find information at least some of the time, rising to 74% of adults under 30. Read the measure carefully: it captures use of AI for information, not whether AI has replaced Google as the starting point, and it should not be quoted as though it does.

The buyer journey has not abandoned Google. It has added an upstream AI layer that filters which brands even reach the verification stage.

Source: AP, How US adults are using AI, according to AP-NORC polling (July 29, 2025)

Nearly All B2B Buyers Now Use AI in Purchase Research

The gap between buyer behavior and marketer readiness is the defining problem of H2 2026. Forrester reported in January 2026 that 94% of B2B buyers use AI in their buying process, and that twice as many buyers named generative AI or conversational search as a more meaningful source of information than any other source. ChatGPT and Perplexity are being used to generate vendor shortlists, compare features, and draft RFP criteria before a human ever visits a product website.

A B2B brand that appears only when a buyer already types its name is absent from the stage where that shortlist is built.

Source: Forrester, B2B Buyers Make Zero-Click Buying Number One (January 22, 2026)

The Traffic Forecast: Gartner's 25% Decline Is Arriving

In February 2024, Gartner predicted that traditional search engine volume would drop 25% by 2026 due to AI chatbots and virtual agents. Looking at H1 2026, that trajectory appears to be tracking. Ahrefs data published in February 2026 showed that the presence of an AI Overview correlates with a 58% lower average click-through rate for the top-ranking page.

Gartner's longer-range projection is that brands' organic search traffic will decrease by 50% or more by 2028 as consumers embrace generative AI-powered search. Whether the exact figure proves accurate is less important than the directional reality: the addressable audience reachable through traditional organic search is contracting, and the audience reachable through AI-generated answers is expanding.

Sources: Gartner Predicts Search Engine Volume Will Drop 25% by 2026, Ahrefs, Update: AI Overviews Reduce Clicks by 58% (February 4, 2026), Gartner, Predicts 50% of Consumers Will Significantly Limit Their Interactions with Social Media by 2025 (December 14, 2023; includes the 2028 organic search traffic prediction)

The Discipline That Did Not Exist Two Years Ago: GEO and AEO

GEO (Generative Engine Optimization) and AEO (Answer Engine Optimization) are not rebranded SEO. They operate on different ranking mechanisms, different content signals, and different success metrics.

Traditional SEO optimizes for crawlability, backlinks, keyword density, and PageRank-derivative signals. Success is measured in organic rank positions and click-through rates.

AEO optimizes for AI-powered search features (Google AI Overviews, AI Mode answer panels) where the goal is inclusion in the generated answer block, not a rank position below it. Success is measured in citation frequency and answer-panel presence.

GEO optimizes for inclusion in the responses generated by LLMs (ChatGPT, Claude, Gemini as a chat interface, Perplexity) where no URL-ranking system exists. Success is measured in brand mention frequency, citation rate, and whether the model's representation of your brand is accurate and favorable.

The three disciplines share a foundation in content quality and E-E-A-T signals, but diverge sharply in structure and execution. Properly implemented FAQPage schema helps here, because the Q&A format maps directly to how AI systems extract and attribute content.

The gap between Google organic rankings and AI citations is also larger than most practitioners assume. Ahrefs found in March 2026 that only 38% of URLs cited in AI Overviews also appeared in Google's top 10 results, so most citations come from pages outside it. A brand that has invested years in SEO cannot assume that investment carries over into AI visibility. The signals overlap, but the systems are distinct.

Source: Ahrefs, Update: 38% of AI Overview Citations Pull From the Top 10 (March 2, 2026)

H2 2026 Outlook: Three Structural Shifts to Plan Around

1. Agentic Commerce Will Compress the Buying Journey

Google announced at I/O 2026 that information agents (capable of continuously scanning for results that match user-defined criteria) will launch for AI Pro and Ultra subscribers this summer. OpenAI has parallel capability in development. The agentic commerce model, where an AI agent expresses intent, surfaces options, compares them, and completes a transaction without the user visiting a product website, is moving from prototype to product in H2 2026.

For B2B, this means the initial vendor shortlist may be generated before a buyer's first branded search ever fires. Brands absent from AI-generated shortlists at that stage will not recover downstream through SEO alone.

2. AI Mode Will Force a New Measurement Standard

With AI Mode at 1 billion users and growing, Google's traditional organic rank report is measuring a shrinking portion of actual search exposure. Impressions in AI Mode answer panels, brand mentions in AI-generated summaries, and position within multi-source citation blocks are not captured by rank-tracking tools built for the blue-link era. Agencies and in-house teams that continue to report solely on traditional rank positions will be reporting on a contracting share of the visibility market.

3. The Entity Signal Gap Will Widen

AI engines construct answers from a combination of retrieval (what they can find) and entity knowledge (what they have learned about a brand from training data and structured signals). Brands with strong Wikipedia coverage, Wikidata entries, clean structured data across their web properties, and consistent third-party mentions in authoritative publications show measurably higher citation rates. This is the "entity authority" dimension of GEO, and it has a long lead time, you cannot build it in a campaign cycle.

The H2 Practitioner Playbook

The following actions are ordered by lead time required and impact magnitude.

Audit your current AI presence across engines before optimizing. You cannot optimize what you have not measured. Run your brand name, core use cases, and category-defining questions through ChatGPT, Gemini, Perplexity, Claude, and Google AI Overviews. Document what comes back: is the brand mentioned? Is it cited? Is the information accurate? This is your baseline.

Build question-first content at the category level. AI engines are trained to extract and cite answers to questions. Content structured around the questions your buyers are asking, not keyword-density documents, generates dramatically higher citation rates. Each piece of question-first content should have FAQPage schema implemented in JSON-LD, because that is the format all major AI engines use to extract structured signals.

Enforce a quarterly freshness discipline. Build a maintenance calendar, not just a publication calendar.

Prioritize third-party citations and offsite mentions. LLMs derive entity authority partly from what authoritative third parties say about a brand: industry publications, analyst coverage, partner mentions, PR. A content strategy that lives entirely on your own domain underweights this signal. Earned media and structured partnerships that generate credible external citations are GEO-relevant investments.

Separate your measurement stack. Track AI-referred traffic in your analytics (most AI chatbots pass referral headers or show as (direct) with specific patterns). Track brand citation frequency across AI engines. Track AI Overview and AI Mode panel inclusion rates. Report these separately from traditional organic metrics, because they are measuring different visibility systems.

Structure product and service data for AI extraction. For any brand with product catalog, pricing, or specification content: schema markup is not optional in 2026. Structured product data that AI systems can parse cleanly outperforms keyword-optimized pages for inclusion in AI-generated recommendations.

The Dual-Visibility Imperative

The defining strategic error of 2026 is treating AI search visibility and Google SEO as the same problem with the same solution. They are related but distinct:

  • In an Ahrefs study of 15,000 prompts, only about 12% of links cited by ChatGPT, Gemini, and Copilot appeared in Google's top 10 for the same prompt (Ahrefs, August 11, 2025), and the citation triggers differ significantly from ranking signals.
  • Only 38% of AI Overview citations come from Google's top 10 (Ahrefs, March 2, 2026), meaning SEO rank is not a reliable predictor of AI citation.
  • On its own site, Ahrefs found AI search visitors were 0.5% of traffic but drove 12.1% of signups over 30 days (Ahrefs, June 16, 2025), a single-site result rather than an industry benchmark.

The brands that emerge from the 2026-2028 transition with compounding visibility are those that treat GEO and SEO as parallel disciplines requiring parallel measurement, parallel content investment, and parallel distribution strategy. Neither replaces the other in the near term. Both are required.

Where This Lands

The H1 2026 data adds up to a single actionable conclusion: the window for early-mover advantage in AI search visibility is closing, not opening. ChatGPT has a billion monthly users. Google AI Overviews reach 2.5 billion. AI Mode has crossed 1 billion in its first year. The platforms are no longer emerging. They are established.

The brands and agencies that move in H2 2026 to build structured, question-first, entity-rich content optimized for AI citation will be compounding that advantage for years. Those that wait for the category to stabilize further will be optimizing into a market where positions are already taken.

Understand where your brand currently stands in AI search before you invest in improving it.

Get a complimentary AI visibility audit at Genmark AI. We monitor your brand citation frequency, citation accuracy, and visibility trends across eight AI engines: ChatGPT, Gemini, Google AI Overviews, Google AI Mode, Perplexity, Claude, Copilot, and Grok.

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