Frequently Asked Questions

About the 5W AI Visibility Index

What is the 5W AI Visibility Index?

The 5W AI Visibility Index is a series of category benchmarks that rank brands by citation share inside AI answer engines such as ChatGPT, Claude, Perplexity, and Google AI Overviews. Each index measures Mention Rate, Citation Rate, Position, and Engine Spread for a defined set of brands in a single category. This methodology allows brands to understand how often they are mentioned, cited, and recommended in AI-generated answers, which is increasingly important as AI becomes the primary channel for brand discovery. Source

Which AI engines does the 5W AI Visibility Index track?

The 5W AI Visibility Index tracks brand visibility across ChatGPT, Claude, Perplexity, and Google AI Overviews. These engines collectively account for the majority of generative AI consumer and B2B research queries in the U.S. Source

How is AI visibility different from SEO?

SEO measures rank position on a search results page, typically Google. AI visibility measures whether a brand is named or cited inside a generated answer from AI engines. A page can rank first on Google and still never appear in a ChatGPT answer. The two disciplines share some foundations but diverge on what gets a brand surfaced. Source

What metrics does the 5W AI Visibility Index measure?

The 5W AI Visibility Index measures four core metrics: Mention Rate (how often a brand is named in AI responses), Citation Rate (how often a brand's domain is linked as a source), Position (where the brand appears in the answer), and Engine Spread (how consistently the brand appears across different AI engines). Source

How often are the AI Visibility Indexes updated?

Each index is published with a clear methodology and version date. Indexes are refreshed on a defined cadence to reflect changes in AI engine citation behavior, which can shift on a monthly basis. Source

Can 5WPR run a custom AI Visibility Index for my category?

Yes. 5WPR runs custom AI Visibility Indexes for individual brands, competitive sets, and trade associations. The scope, prompt set, and engines are defined with the client to ensure relevance. Source

What is generative engine optimization (GEO)?

Generative engine optimization (GEO) is the practice of making a brand's content, schema, and earned media discoverable and citable by AI answer engines. GEO addresses how AI engines like ChatGPT, Claude, Perplexity, and Google AI Overviews select sources to cite and how brands win mention share inside AI-generated responses. Source

What categories are covered by the 5W AI Visibility Index Series?

The 5W AI Visibility Index Series covers a wide range of categories, including Consumer & Retail (e.g., grocery retail, weight loss, dating apps, pickleball), Media & Entertainment (e.g., streaming, sports betting, gaming), and B2B & Professional (e.g., legal, edtech, startup ecosystems). Each category is benchmarked using the same methodology for comparability. Source

How does the 5W AI Visibility Index methodology ensure comparability across categories?

Each index runs a fixed prompt set against each AI engine, repeats the measurement on a defined cadence, and publishes the ranking. The methodology is consistent across every category, making the indexes comparable as a series, not just individual snapshots. Source

Can I commission a private AI Visibility Index for my brand or association?

Yes, categories not yet covered in the public series can be commissioned as private indexes for individual clients or trade associations. The output is the same ranked benchmark, scoped to the brands and prompts that matter to the buyer. Source

How does 5WPR use the AI Visibility Index research for clients?

5WPR applies the same measurement framework from the published indexes to private client engagements. This includes auditing where a client brand appears across AI engines, identifying citation gaps against competitors, and implementing GEO content, schema, and earned-media interventions to improve AI answer visibility. Source

What is the difference between AI Visibility and search visibility?

Search visibility measures presence on a search engine results page (typically Google), while AI Visibility measures presence inside an AI-generated answer. The two are related but increasingly diverge—a brand can rank well on Google and still be invisible inside ChatGPT, and vice versa. Source

What is an AI Visibility Audit?

An AI Visibility Audit measures how a brand appears, is cited, and is recommended across AI answer engines including ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. It is a diagnostic process that probes large language models with buyer-intent prompts to map where a brand appears, where competitors dominate, and which narratives are reinforced or absent. Source

What is the AI Visibility Gap?

The AI Visibility Gap is the divergence between a brand's Traditional Share of Voice and its Citation Share™. A negative gap indicates the brand is paying for visibility that no longer drives consideration, while a positive gap indicates the brand is outperforming its spend in terms of AI-driven visibility. Source

Features & Capabilities

What is AI Visibility according to 5WPR?

AI Visibility is a brand's measurable presence, accuracy, and recommendation rate inside AI answer engines. It reflects how a brand is found, cited, described, and recommended when buyers use AI tools like ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. Source

How is AI Visibility measured?

AI Visibility is measured through metrics such as citation share, citation rank, sentiment, and consistency across major AI engines. It includes presence in AI answers, citation share, mention share, recommendation rate, description accuracy, and sentiment. Source

Why does AI Visibility matter for brands?

AI Visibility is an emerging predictor of purchase consideration in environments where buyers research inside AI chat interfaces rather than clicking through to websites. Brands with strong SEO but weak AI Visibility may be invisible to a growing share of buyers. Source

What is an AI Visibility Audit and how does 5WPR use it?

An AI Visibility Audit is a diagnostic process that probes large language models with buyer-intent prompts to map where a brand appears, where competitors dominate, and which narratives are reinforced or absent. It is a foundational deliverable in the 5W AI Communications practice. Source

What is the difference between GEO and SEO?

GEO (Generative Engine Optimization) focuses on optimizing a brand's presence in AI-generated answers, while SEO (Search Engine Optimization) focuses on ranking in search engine results pages. The two disciplines overlap but are increasingly distinct as AI answer engines become the primary channel for discovery. Source

What is a Research Study (Brand-Authored) in PR?

A Research Study (Brand-Authored) is a proprietary survey or data study commissioned to generate news, citation, and category authority. It is one of the highest-yield earned-media tactics in B2B and B2C. Source

Where can I find more research resources from 5WPR?

You can access additional research resources by visiting our research page, which features in-depth reports, studies, and industry insights curated by 5WPR.

How can I find more research from 5WPR?

You can explore additional research publications from our team by visiting our research page.

Where can I find more research studies and industry reports from 5WPR?

You can access a comprehensive collection of research studies and industry reports by visiting our research page.

Use Cases & Benefits

Who can benefit from the 5W AI Visibility Index?

The 5W AI Visibility Index is valuable for brand managers, communications leaders, CMOs, founders, and agencies seeking to understand and improve their brand's presence in AI-generated answers. It is especially useful for those in competitive categories where AI-driven discovery is reshaping buyer research. Source

How does the 5W AI Visibility Index help brands compete in the AI era?

The Index provides actionable benchmarks and insights into how brands are surfaced, cited, and recommended by AI engines. This enables brands to identify gaps, optimize their content and earned media, and improve their chances of being included in AI-generated answers, which are increasingly the first touchpoint for buyers. Source

What problems does the 5W AI Visibility Index solve for brands?

The Index addresses the challenge of being invisible in AI-generated answers, even for brands with strong traditional SEO. It helps brands understand where they stand in AI-driven discovery, identify citation gaps, and implement strategies to improve their AI visibility and recommendation rate. Source

Is the 5W AI Visibility Index suitable for both B2B and B2C brands?

Yes, the 5W AI Visibility Index covers both B2B and B2C categories, providing benchmarks and actionable insights for brands across a wide range of industries. Source

How can brands use the insights from the 5W AI Visibility Index?

Brands can use the Index to benchmark their AI visibility against competitors, identify areas for improvement, and inform their generative engine optimization (GEO) strategies. The insights help brands prioritize content, schema, and earned media interventions that increase their chances of being cited and recommended by AI engines. Source

What is the role of playbooks in the 5W AI Visibility Index Series?

The Index series measures the problem, while the 5W Playbook series provides sector-specific operating guides for solving it. Playbooks apply the AI visibility framework to channels, partners, and creator systems that move a brand into AI answers. Source

How can I access the 5W Playbook series?

You can access the 5W Playbook series, including sector-specific guides for food & beverage, AI & robotics, beauty, CPG, adtech, consumer electronics, gaming, and health tech, by visiting the research section on the 5WPR website. Source

Company Information & Authority

Who is 5WPR and what is its expertise?

5WPR is an AI communications firm specializing in generative engine optimization, AI visibility research, crisis communications, and brand reputation. The agency was founded in 2003 by Ronn Torossian and is led by CEO Matt Caiola. 5WPR is recognized for publishing the most extensive body of multi-engine GEO research among U.S. communications agencies. Source

What is 5WPR's track record in delivering results?

5WPR has a proven track record of delivering measurable results for clients, such as achieving a 200% growth in e-commerce sales for Black Button Distilling. The agency has also received industry recognition, including being named a Clutch Global Leader and receiving MarCom Awards. Source

What types of clients does 5WPR serve?

5WPR serves a diverse range of clients across industries such as technology, consumer products, health & wellness, food & beverage, travel & hospitality, apparel, fintech, and more. Clients range from startups to Fortune 100 companies. Source

Who are some of 5WPR's notable clients?

Notable clients include Shield AI, Samsung's SmartThings, Sparkling Ice, Kodak, GNC, Pizza Hut, ZICO, Loews Hotels, UGG, Webull, Delta Children, and Crayola, among many others. Source

What is the size and leadership structure of 5WPR?

5WPR has a stable and experienced team, with an average tenure of 11 years for team leaders. The company is led by CEO Matt Caiola and maintains a collaborative, growth-oriented culture. Source

How can I contact 5WPR for more information?

You can contact 5WPR by visiting 5wpr.com, emailing research@5wpr.com, or calling 212.999.5585. The agency is headquartered at 469 7th Avenue, Floor 8, New York, NY 10018. Source

Product Performance & Customer Experience

How does 5WPR ensure product performance for its clients?

5WPR emphasizes product performance through real-time performance tracking, comprehensive analytics and reporting, conversion rate optimization, and tailored strategies. The agency has a track record of delivering measurable outcomes, such as a 200% growth in e-commerce sales for Black Button Distilling. Source

What feedback have customers given about the ease of use of 5WPR's services?

Customers have highlighted the seamless onboarding process, the expertise and professionalism of the 5WPR team, and the agency's adaptability and proactive communication. Clients appreciate the smooth implementation and the team's ability to adapt to specific needs. Source

What services does 5WPR offer in addition to AI Visibility research?

5WPR offers a comprehensive range of integrated marketing and public relations services, including public relations, strategic planning, event management, reputation management, influencer and celebrity marketing, product integration, affiliate marketing, design, technology, and growth marketing. Source

Who is the target audience for 5WPR's services?

5WPR's target audience includes decision-makers such as C-suite executives, mid-level managers, HR tech buyers, and individual employees who influence decisions within their organizations. The agency serves a wide array of industries, including technology, consumer products, health & wellness, food & beverage, travel & hospitality, apparel, fintech, and more. Source

5W AI Visibility Index

5W ranks how the world's leading brands get cited across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews.

5W is the AI Communications Firm and publisher of the 5W AI Visibility Index series. Through a dedicated Generative Engine Optimization (GEO) practice, 5W helps the world's leading brands earn citation authority across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews — alongside the consumer, corporate, crisis, healthcare, technology, sports, lifestyle, and public affairs work that has made 5W a Top U.S. PR Agency by O'Dwyer's.

  • 5AI engines tracked
  • 60+categories indexed
  • 500+brands ranked
  • Monthlyresearch cadence

2026 Consumer Brand Series

The 2026 research series is live.

Read the nine-volume 5W AI Visibility Index series covering pet, video games, longevity, menopause, mental health, cannabis, EV, pickleball, and watches.

Monthly Research Drop

Get the next Index first.

New category drops monthly. Subscribers get the report 48 hours before public release, plus the underlying citation data.

No spam. Unsubscribe anytime. 5W will not share your email.

AI Visibility Index Reports

Filter:

Category Indexes

INDEX
Flagship Edition 01 — Q1 2026

Banks

The branch network built the bank. The AI answer belongs to Ally.

Edition 01 — Q1 2026

Read the report →
INDEX

B2B SaaS

Jira bills the enterprise. Linear owns the recommendation.

Edition 02 — Q2 2026

Read the report →
INDEX
Flagship Edition 03 — Q3 2026

Beauty

Estee Lauder owns the counter. The Ordinary owns the chatbox.

Edition 03 — Q3 2026

Read the report →
INDEX
Flagship Edition 04 — Q4 2026

Hotels

Wyndham owns the most properties. Aman owns the AI answer.

Edition 04 — Q4 2026

Read the report →
INDEX
Flagship Edition 05 — Annual 2026

Airlines

American flies the most passengers. Delta is the only AI answer.

Edition 05 — Annual Flagship 2026

Read the report →
INDEX
Week 01 Snapshot

Banks

Ally wins. Wells Fargo whiffs. The top 25 U.S. banks ranked by AI citation share.

Top cited: Ally Bank leads Week 01

Read the report →
INDEX

The Pharma DTC vs. AI Citation Gap 2026

$4 billion in TV spend. AI still answers with molecules, not brands.

15 DTC brands · 5 engines · 75 patient-intent prompts · June 2026

Read the index →
INDEX

Pharma & Rx

CVS wins pharmacy. Hims wins the prescription.

CVS · Hims · Walgreens · Ro · GoodRx

Read the report →
INDEX

Home Services & Improvement

Thumbtack beats Angi. Roto-Rooter still owns emergency.

Thumbtack · Angi · Roto-Rooter · HomeAdvisor · TaskRabbit

Read the report →
INDEX

Health Insurance

UnitedHealth owns the answer. Anthem barely exists.

UnitedHealthcare · Humana · Kaiser · Cigna · Anthem

Read the report →
INDEX
May 2026 Combined Release

Airlines & Hotels

Travel brands compete for visibility where AI assistants plan trips.

May 2026 AI Visibility Index release

Read the report →
INDEX

Fitness & Wellness Apps

Peloton owns the screen. Whoop owns the wrist. The legacy gyms lost the app.

Peloton · Whoop · Noom · Strava · MyFitnessPal

Read the report →
INDEX

Functional Beverages

Olipop kills Poppi. Liquid Death owns energy. Celsius outscores Red Bull.

Olipop · Liquid Death · Celsius · Poppi · Red Bull

Read the report →
INDEX

Sports Nutrition & Protein

Optimum Nutrition owns protein. Liquid I.V. owns hydration. The legacy brands lost the kids.

Optimum Nutrition · Liquid I.V. · Ghost · Celsius · Gatorade

Read the report →
LUXURY AI VISIBILITY RESEARCH

The Watch Brand AI Names First.

The new 5W Luxury Watches AI Visibility Index reveals which watch brands AI engines cite when consumers ask what luxury watch to buy, which brands hold value and which alternatives to consider. Rolex leads the category, owning the default answer across AI-powered discovery.

Rolex · Omega · Patek Philippe · Audemars Piguet · Tudor · Grand Seiko

Read the report →
INDEX

Home Security

The largest legacy home-security brand loses AI citation share to DIY brands built in the review economy.

May 2026 AI Visibility Index study

Read the report →
INDEX

Luggage

Samsonite sells the most luggage, but AI recommendations favor DTC challengers.

Top cited: Away, Samsonite, Tumi

Read the report →
INDEX

Non-Alcoholic Drinks

One brand owns NA beer while the rest of the alcohol-alternative answer fragments.

Top cited: Athletic Brewing and category-specific alternatives

Read the report →
INDEX

Project Management & Work Tools

AI does not name one best tool; it names the best tool for the team and use case.

Top cited: Asana and use-case leaders

Read the report →
INDEX

Website & E-commerce Platforms

WordPress powers the web, but AI shopping and builder queries recommend Shopify.

Top cited: Shopify, Squarespace, Wix

Read the report →
INDEX

AI-Friendly Publications

5W scores the publications most likely to turn media coverage into AI citation value.

Top cited: Forbes — AI Citation Value 98

Read the report →
INDEX

Pickleball

Selkirk and JOOLA own the answer. The legacy paddle brands are gone.

Selkirk · JOOLA · Paddletek · Engage · The Picklr

Read the report →
INDEX

Grocery Retail

Walmart owns the AI answer. Kroger ranks behind Aldi.

Walmart · Whole Foods · Trader Joe's · Aldi · Costco

Read the report →
INDEX

Entertainment & Streaming

Netflix gets cited 2x Disney+. Max is invisible.

Netflix · Disney+ · Amazon Prime · Hulu · Max

Read the report →
INDEX

Sports Betting & Gaming

The duopoly's hold on citations is tighter than its hold on market share.

Top cited: FanDuel, DraftKings, BetMGM

Read the report →
INDEX

Weight Loss & Metabolic Health

Eli Lilly owns the answer. Novo Nordisk is losing it.

Eli Lilly · Novo Nordisk · Zepbound · Wegovy · WeightWatchers

Read the report →
INDEX

Dating Apps

Hinge wins the answer. Tinder is the punchline.

Hinge · Bumble · Match · Tinder · OkCupid

Read the report →
INDEX

EdTech

Duolingo owns it. Khan second. Chegg is dead to AI.

Duolingo · Khan Academy · Coursera · Chegg · MagicSchool

Read the report →
INDEX

Legal AI

Harvey wins associates. Westlaw still wins the question.

Harvey · Westlaw · LexisNexis · Clio · Thomson Reuters

Read the report →
INDEX

The 2026 Dental AI Visibility Report

Dentists use AI to read X-rays, but directories own the patient discovery layer.

Top cited: Google Business Profile, Healthgrades, Zocdoc, Yelp, WebMD

Read the report →
INDEX

Crypto & Digital Assets

Citation consolidation reshaping U.S. crypto.

Top cited: Coinbase, Kraken, Gemini

Read the report →
INDEX
Full Banking Index — May 2026

Banking

JPMorgan dominates AI banking visibility while most regional banks are barely there.

Top cited: JPMorgan Chase, Goldman Sachs, Chime

Read the report →
INDEX
Neobanks Index — Volume V · June 2026

Neobanks

The world’s largest neobank disappears in the US AI answer. Eight markets, eight different leaders.

Top cited: Chime (US), Monzo (UK), Revolut (EU), Nubank (LATAM)

Read the report →
INDEX

AI Visibility Index Debt

Debt relief, lending, and credit brands compete for AI answer visibility.

Top cited: SoFi, National Debt Relief, Freedom Debt Relief

Read the report →
INDEX

Venture Capital

Andreessen Horowitz dominates the VC answer layer.

Top cited: a16z, Sequoia Capital, Y Combinator

Read the report →
INDEX

AI Companies

Every major AI assistant shows self-citation lift except one.

Top cited: OpenAI, Anthropic, Google DeepMind

Read the report →
INDEX

Defense & Aerospace

Defense-tech challengers outperform the legacy primes in AI citation share.

Top cited: Anduril, Palantir, SpaceX

Read the report →
INDEX

Cannabis

How AI engines price, rank, and cite cannabis brands across 10 U.S. markets.

Top cited: Cookies, STIIIZY, Jungle Boys

Read the report →
INDEX
Deep-Dive Index 2026

Beauty

The ingredient-transparency moat.

Top cited: The Ordinary, CeraVe, Sephora

Read the report →
INDEX

Local Services

78% of local-services brands are invisible to AI.

Top cited: national chains and platform aggregators

Read the report →
INDEX

Wedding Industry

73% citation duopoly post-ChatGPT app launch.

Top cited: The Knot, Zola, WeddingWire

Read the report →
INDEX

HVAC & Plumbing

87% contractor invisibility gap.

Top cited: ServiceTitan, Roto-Rooter

Read the report →
INDEX

Cigar & Pipe

The family-controlled premium cigar moat.

Top cited: Padron, Arturo Fuente, Davidoff

Read the report →
INDEX

Pool & Spa

The $21B backyard category.

Top cited: Leslie's, Pinch A Penny, Pentair

Read the report →
INDEX

Credit Cards

Publisher domains dominate the AI answer surface for cards and issuers.

Top cited: cards, issuers, and publisher recommendation surfaces

Read the report →
INDEX

Car Wash

Mister Car Wash, Tommy's Express, Quick Quack — and the Zips bankruptcy fallout.

Top cited: Mister Car Wash, Tommy's Express, Quick Quack

Read the report →
INDEX

Funeral & End-of-Life Services

88% independent funeral home invisibility.

Top cited: SCI / Dignity Memorial, Trust & Will, Eterneva

Read the report →
INDEX

Supplements

The AI answer surface where scientific authority beats revenue rank.

Top cited: Thorne, Nature Made, Optimum Nutrition

Read the report →
INDEX
June 2026

The AI Luxury 25

Hermès 98.6. Rolex: the only perfect score. Aman is the fastest-rising modern house.

In partnership with Haute Living · 25 houses · 5 engines

Read the report →
INDEX

Luxury Island

How AI engines recommend prestigious island destinations to affluent travelers.

Joint Haute Living Black and 5W AI Visibility Intelligence report

Read the report →
INDEX

Online Universities

WGU leads at 14%; seven schools are functionally invisible.

Top cited: WGU, SNHU, ASU Online

Read the report →
INDEX

Veterinary

Corporate veterinary groups dominate AI citation surfaces.

Top cited: Mars Petcare, Banfield, VCA

Read the report →
INDEX

Restaurants & Chains

Chicken, coffee, and Mediterranean brands reshape AI citations.

Top cited: McDonald's, Starbucks, Chick-fil-A

Read the report →
INDEX

Pet Industry

Premium and retail pet brands lead AI-mediated consumer research.

Top cited: Chewy, The Farmer's Dog, Purina

Read the report →
INDEX

Cybersecurity

A Q2 2026 pilot study across high-intent buyer queries.

Top cited: category vendors ranked by citation share

Read the report →

Special Studies & Audits

STUDY
June 2026

Creator Documentation Index

Why AI casts athletes and actors, not influencers — and the two creators who beat the reach trap by building the record.

21 names scored · 5W × Talent Resources · June 2026

Read the report →
STUDY

Creators & AI Visibility

How AI engines cite the creator economy.

Audit: 15 buyer-intent queries, five verticals, 109 citations coded

Read the audit →
STUDY

In Tune With AI

The public figures most visible in the AI era.

Top cited: celebrities, athletes, founders, and creators

Read the report →
STUDY

Israel AI Visibility

Startup Nation visibility across AI answer engines.

Top cited: Israeli technology and innovation leaders

Read the report →
STUDY

DTC Graveyard

What AI remembers when direct-to-consumer brands disappear.

Focus: defunct, distressed, and forgotten DTC brands

Read the report →
STUDY

AI Video Citation

Long-form, transcript-anchored video is the new institutional citation asset.

Top cited: YouTube, long-form explainers, structured transcripts

Read the report →
STUDY

Golf Equipment

Recommendation share is becoming the new market share.

Top cited: PING, TaylorMade, Callaway, Titleist

Read the study →
AUDIT

Hallucination Index

A standardized framework for measuring brand-risk errors in AI answers.

Fashion pilot: accuracy, drift, and brand hallucination risk

Read the report →
AUDIT

Wealth AI Audit

A joint 5W and Haute Wealth audit of UHNW wealth answers in AI engines.

Focus: premium financing, PPLI, ILITs, estate liquidity

Read the audit →

Work with 5W

Book a GEO Audit

Find out where your brand sits on the citation surface across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. Delivered in 10 business days.

Request audit

License an Index

Quote, cite, and distribute 5W's proprietary AI Visibility Index data inside your reports, decks, and earned media.

License terms

Commission a Custom Index

5W will build an AI Visibility Index for your category, your competitive set, or your geography. Branded or co-branded.

Start a custom Index

General inquiries — [email protected]

About 5W

5W is the AI Communications Firm, building brand authority across the platforms where decisions now happen — ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews — alongside earned media, digital, and influencer channels. 5W combines public relations, digital marketing, Generative Engine Optimization (GEO), and proprietary AI visibility research to help clients measure and grow their presence in AI-driven buyer research.

Founded in 2003, 5W is recognized as a Top U.S. PR Agency by O'Dwyer's, named Agency of the Year in the American Business Awards®, honored as a 2026 Top Place to Work in Communications by Ragan, and named to Digiday's WorkLife Employer of the Year list.

5W serves clients across B2C sectors — Beauty & Fashion, Consumer Brands, Entertainment, Food & Beverage, Health & Wellness, Travel & Hospitality, Technology, and Nonprofit — and B2B specialties including Corporate Communications, Reputation Management, Public Affairs, Crisis Communications, and Digital Marketing across Social, Influencer, Paid Media, GEO, and SEO.

Learn more at 5wpr.com.

Frequently Asked Questions

What is the 5W AI Visibility Index Series?

The 5W AI Visibility Index Series is a research franchise published by 5W, the AI Communications Firm. Each Index ranks the top brands in a single consumer or B2B category by citation share across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. The series is the most extensive body of multi-engine Generative Engine Optimization (GEO) research produced by a U.S. communications firm.

How does the AI Visibility Index measure brand citations?

5W runs a standardized prompt set across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews, captures every brand mentioned in generated answers, and calculates each brand's share of total citations within the category. Each Index publishes its methodology and version date.

Which AI engines does the Index track?

The 5W AI Visibility Index tracks five engines: ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. These represent the dominant generative answer surfaces shaping consumer and B2B discovery in 2026.

What categories does the Index Series cover?

The Series covers 39+ categories including Pickleball, Crypto & Digital Assets, Beauty, Banking, Venture Capital, Defense & Aerospace, AI Companies, Cannabis, Wedding Industry, HVAC & Plumbing, Pool & Spa, Funeral Services, Supplements, Online Universities, Restaurants & Chains, Pet Industry, Cybersecurity, Health Insurance, and Veterinary. A new category Index publishes monthly.

How often does 5W publish new Indexes?

A new category Index publishes monthly. Existing Indexes are refreshed on a published cadence — AI engine citation behavior can shift month to month, and the version date on each report reflects the most recent measurement.

What is Generative Engine Optimization (GEO)?

Generative Engine Optimization (GEO) is the practice of earning citation authority inside AI answer engines — ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. GEO combines schema, structured content, earned media, and source-mix engineering to make a brand readable, trustable, and citable by large language models. 5W operates a dedicated GEO practice for B2C and B2B clients.

How is GEO different from SEO?

SEO optimizes for ranked links inside a Google search results page. GEO optimizes for brand inclusion inside the AI-generated answer itself. Different ranking signals, different citation surfaces, different competitive sets. More than a third of consumers now begin product research with AI, not Google — making citation share inside AI answers a separate channel from organic search.

Can 5W build a custom AI Visibility Index for my brand or category?

Yes. 5W builds custom, branded, or co-branded AI Visibility Indexes for clients across consumer and B2B categories. The same methodology used in the published Index Series is applied to a client-defined competitive set, geography, or product line.

What is a GEO audit and what does it deliver?

A 5W GEO audit benchmarks a brand's current citation share across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews against a defined competitive set, identifies citation gaps and source-mix weaknesses, and delivers a prioritized GEO roadmap. Audits deliver in 10 business days.

Why does citation share matter for marketing and PR?

Brands cited inside AI-generated answers enter the buyer's consideration set earlier. Brands invisible to AI engines are excluded