< FREE · MEASURED, NOT MODELED >

The AI Shelf Index

When someone asks ChatGPT what to buy, a handful of brands get named and the rest do not. We measure which ones. Each page below is a real product category, probed with brand-free shopping questions, repeated hundreds of times, with every brand and every offer recorded.

No category goes up without data behind it. 22,310 questions and 129,608 product offers so far. More categories are running now.

Categories

18

Questions asked

22,310

Offers recorded

129,608

Engine

ChatGPT

Beauty

• At-Home Gel Nails 627 questions · 179 brands
  Olive & June takes half the shelf Leading: Olive & June 51% · OPI 33% · Sally Hansen 31%
• Clay Masks & Natural Skincare 608 questions · 251 brands
  A dead heat at the top Leading: innisfree 42% · The Ordinary 42% · Kiehl's 32%
• Clippers & Hot Tools 656 questions · 100 brands
  The pro-supply brands still hold it Leading: BaByliss 62% · Wahl 46% · Andis 37%
• Curly & Textured Hair 635 questions · 168 brands
  Mielle leads a deep shelf Leading: Mielle 47% · SheaMoisture 41% · PATTERN 27%
• Drugstore Color Cosmetics 645 questions · 69 brands
  e.l.f. is in nearly 8 of every 10 answers Leading: e.l.f. 78% · Maybelline 61% · NYX 60%
• Fragrance Dupes 554 questions · 173 brands
  Dossier is the category Leading: Dossier 74% · Lattafa 23% · fine'ry 21%
• Lashes & Beauty Tools 658 questions · 154 brands
  KISS and Ardell are a coin flip Leading: KISS 46% · Ardell 44% · Velour Lashes 30%
• Vitamin C Serums 653 questions · 132 brands
  CeraVe leads on an affordability question Leading: CeraVe 60% · The Ordinary 47% · La Roche-Posay 38%

Pet

• Dog Supplements 5,453 questions · 327 brands
  Two DTC brands beat the legacy names Leading: Zesty Paws 44% · Native Pet 38% · Nutramax 26%

Food & Beverage

• Electrolyte & Hydration Powders 3,373 questions · 208 brands
  The biggest brand does not win Leading: Ultima Replenisher 62% · Liquid I.V. 51% · LMNT 51%

Grocery

• Coffee Beans 1,122 questions · 280 brands
  Starbucks comes fifth on its own shelf Leading: Peet's 47% · Illy 46% · Lavazza 36%
• Olive Oil 1,177 questions · 259 brands
  The names you know aren't the ones ChatGPT names Leading: California Olive Ranch 59% · Terra Delyssa 52% · Cobram Estate 48%

Supplements

• Creatine 638 questions · 82 brands
  Optimum Nutrition takes two of every three answers Leading: Optimum Nutrition 69% · NOW 32% · Thorne 25%
• Protein Powder 616 questions · 86 brands
  Two points separate first and second Leading: Dymatize 48% · Optimum Nutrition 46% · ISOPURE 21%

Personal Care

• Deodorant 1,225 questions · 168 brands
  Native ties Dove Leading: Native 56% · Dove 55% · Lume 38%
• Sunscreen 1,218 questions · 145 brands
  Blue Lizard outranks Neutrogena Leading: La Roche-Posay 62% · CeraVe 47% · Blue Lizard 46%
• Toothpaste 1,240 questions · 127 brands
  Colgate edges Crest, then a wall Leading: Colgate 64% · Crest 58% · Sensodyne 55%

Household

• Laundry Detergent 1,212 questions · 108 brands
  Tide runs away with it Leading: Tide 75% · Persil 51% · Seventh Generation 48%

Who writes the AI shelf → Before ChatGPT names a product, it reads. See the sites it cites most across every category we measured.

What share of shelf means

The percentage of answers a brand showed up in. A brand at 50% got named in half the responses to questions in that category. It is not a rank of quality, revenue, or market share, and it is not a prediction. It is a count of how often ChatGPT brought the brand up when nobody asked for it by name.

One engine, one country, one point in time. Shelves move. We date every page.

Your category is not up yet?

We run this on any product category, and on your brand specifically — where you show up, who shows up instead, and what is missing from your feed.

Get your free AI shopping plan