Is AI recommending your brand, or your competitor?
Shoppers now ask ChatGPT, Gemini and Perplexity what to buy. We test what they say about your category, show you where you're losing, and work to fix it.
Free. Takes about 2 minutes to request. We aim to send your report within 2 business days.
| Brand named | ChatGPT | Gemini | Perplexity |
|---|---|---|---|
| AG1 | 25% | 88% | 100% |
| Amazing Grass | 100% | 38% | 75% |
| Organifi | 0% | 38% | 12% |
Share of answers naming each brand across 4 greens powder questions, 8 answers per assistant. ShelfCheck testing, Oct 14, 2026.
Three things most brands don't know
Before you can fix what an AI assistant says about your category, you have to see it.
Shoppers are asking AI.
Adobe reported that traffic to U.S. retail sites from generative AI tools rose 4,700% year over year in July 2025.
Source: Adobe (opens in a new tab)
AI assistants often disagree.
In our testing, one creatine brand was named in 100% of Gemini's answers and 0% of Perplexity's, for the same questions in the same week.
Most brands never check.
Your web analytics can't show which brands an AI assistant recommended in a conversation you weren't part of.
The AI Shelf Index
175 AI answers to 24 real shopper questions across 5 supplement categories. Here's who gets named.
0%
How often ChatGPT named one electrolyte brand. Gemini and Perplexity each named it in 25% of answers.
100% vs 0%
One creatine brand: named in every Gemini answer, never on Perplexity.
Under half
Even the top-ranked protein brand appeared in under half of AI answers.
Results
AI Shelf Index by ShelfCheck: 24 shopper questions asked repeatedly on ChatGPT, Gemini and Perplexity, 175 answers in total, tested October 13–14, 2026. Percentages show the share of each assistant's answers that named the brand. AI answers change over time, so results reflect this test window only. Brand names are trademarks of their respective owners. ShelfCheck is not affiliated with or endorsed by these brands or by OpenAI, Google or Perplexity, and the brands shown are not ShelfCheck clients.
How it works
From request to fix, in four steps.
- Step 1 of 4
Request your report
Tell us your brand and the competitors you care about. Takes about two minutes.
- Step 2 of 4
We query the assistants
We ask ChatGPT, Gemini and Perplexity the questions your shoppers ask, more than once, and record every brand they recommend.
- Step 3 of 4
We find why you're skipped
We look at the reviews, articles, forum threads and product pages the assistants draw on, and where competitors show up and you don't.
- Step 4 of 4
You get the plan
Your free report shows where you're losing and what could close the gap. If you start a pilot, we work on what's fixable and re-test so you can see the change in numbers.
What's in your free report
- Your AI share on ChatGPT, Gemini and Perplexity for your category
- Which competitors get recommended instead of you, and how often
- Screenshots of real AI answers
- The top 3 likely reasons you're being skipped
30-day AI Shelf Pilot
We test, diagnose and work on fixes, then re-test after 30 days using the same questions. If your brand's AI share doesn't go up, you get your money back. See the refund policy.
Start with a free reportCommon questions
What is the "AI shelf"?
The short list of brands an AI assistant recommends when a shopper asks what to buy. If you're not on it, that shopper may never see you.
How is this different from SEO?
Related, but not the same. AI assistants draw on reviews, forums, articles and product pages, and their answers don't map neatly to Google rankings. We measure the AI answers directly.
Which AI assistants do you check?
ChatGPT, Gemini and Perplexity.
How fast is the free report?
We aim to send it within 2 business days of your request.
Can you guarantee AI will recommend my brand?
No one can. AI assistants are run by other companies and their answers change. We measure, explain what's likely driving the results, and work on the parts that can be improved. The pilot comes with a money-back guarantee if your AI share doesn't go up.
Do you work with my category?
Supplements, wellness, food and beverage and beauty, and any category where shoppers ask AI what to buy.
Find out what AI tells your shoppers.
Tell us your brand and we'll show how ChatGPT, Gemini and Perplexity answer for your category today, and where you're losing ground.
Kai
No call needed. By requesting a report you agree to our Terms.