Mostly, no. Your Google reviews matter less to AI than you'd think. A September 2026 study of about 200,000 local searches found that Google's own AI tools lean on Google Business Profiles, where your reviews live. ChatGPT "hardly uses" them. It leans on Yelp, Bing and business websites instead. Reviews still matter. But in our tests, reviews alone rarely decided which business got named.
We tested this in late October by asking four AI assistants, ChatGPT, Google's AI Mode, Gemini and Claude, the questions buyers ask, 10 times each. One business with a perfect 5.0 rating was named in 23 of 40 answers on Google's two assistants and in 0 of 40 on the other two. A shop with 2 reviews was named in 40 of 40. Here is what the reviews were doing, and what they weren't.
The short version
Google's AI reads Google reviews. ChatGPT mostly doesn't. Google Business Profiles were 28.5% of all citations in BrightLocal's 2026 study, but "hardly used by ChatGPT."
Yelp is read by both. All three AI tools in that study relied on Yelp.
A 5.0 rating didn't carry across assistants. The 5.0-rated business above: Google's AI Mode and Gemini named it in 23 of 40 answers. ChatGPT and Claude named it in 0 of 40.
In crowded markets, the firms named most had the most reviews. In upstate New York, the firm named in 9 of 10 answers had more than 220 five-star reviews. The local firm we were testing had 4, and was named in none.
In small markets, reviews mattered much less. A computer shop in a small South Dakota town has 2 Google reviews. All four assistants named it in every answer.
Reviews get you into the running. A clear description of what you do and where gets you picked, on every assistant.
Does ChatGPT pull from Google reviews?
Not much. The clearest evidence is BrightLocal's local AI visibility study, published 16 September 2026. It tracked about 200,000 local searches over 60 days on ChatGPT, Google AI Mode and Google AI Overviews, and logged nearly 2 million citations.
Google Business Profile, the place your Google reviews live, made up 28.5% of all citations. But the study is clear about who was doing the citing. In its words, Google Business Profile "is important for AI Mode and AIO, it's hardly used by ChatGPT."
That doesn't mean ChatGPT ignores what customers say about you. It reads reviews in other places. The study found ChatGPT leans on Yelp and Bing. ChatGPT can also show a map of nearby businesses, and OpenAI says it shares location with "trusted third-party providers that help provide more local information," without naming them (OpenAI Help Center, checked 20 Oct 2026).
So your Google reviews feed Google's AI directly. For ChatGPT, what counts more is your reviews and listings elsewhere, and what your own website says.
Does ChatGPT pull from Yelp?
Yes. BrightLocal found "all three platforms rely on Yelp." Yelp made up 9.5% of all citations, the largest share of any review site in the study. OpenAI's own help page says ChatGPT may show restaurant availability from OpenTable, Resy or Yelp.
Yelp isn't the only one. In our tests of IT firms, the main directory for IT services kept appearing behind the firms ChatGPT named. Which site matters depends on your industry: Yelp for restaurants and home services, an industry directory for B2B firms, a medical or legal directory for practices.
Do reviews decide which business AI recommends?
Not on their own. This is where our own data is most useful.
In late October we asked ChatGPT, Google's AI Mode, Gemini and Claude the questions buyers ask, such as "I run a small business in [city], who should handle our IT?" or "Our office in [city] needs a new copier, which local company should we call?" Each question ran 10 times on each assistant, in fresh chats with no history. We recorded who was named, then checked each firm's reviews.
Four patterns stood out.
1. A perfect rating, split down the middle. An office-equipment dealer in Raleigh has a 5.0 rating from 65 Google reviews. We asked two buyer questions about copiers, 10 times each on all four assistants. Google's AI Mode and Gemini named it in 23 of 40 answers. ChatGPT and Claude named it in 0 of 40. A competitor was named in 79 of 80. The dealer's Google profile is filed under the wrong category ("printing equipment supplier") and its homepage headline is "Get in touch." Google's assistants could still find it through its reviews. The other two had nothing to go on.
2. In crowded markets, the leaders had lots of reviews. In upstate New York, the firm named in 4 of 5 ChatGPT answers and all 5 Google answers had more than 220 five-star reviews and topped the main directory for its city. The local firm we were testing had 4 Google reviews and was named in none of the 10. In central Illinois, a firm with a 4.7 rating from 106 reviews, and a page about HIPAA-compliant IT for medical practices in its city, was named in 78 of 80 answers across the four assistants.
3. In small markets, reviews mattered much less. A computer shop in a small South Dakota town has 2 Google reviews, a website last updated in 1998, and the top spot on Google Maps for its town. All four assistants named it in all 40 answers. In a southern Utah town, a repair shop with a 4.3 rating from 85 reviews was named in 39 of 39.
4. Good reviews, but the page didn't say the thing. A Baton Rouge IT firm with 5.0 stars from 72 reviews was named in 16 of 80 answers to two law-firm questions. The competitor named in 47 of 80 has a page titled for law firms in Baton Rouge; the 5.0-rated firm's law page never names the city. In the Chicago suburbs, a construction-IT firm with zero Google reviews was named in 0 of 40, while a competitor with a page titled for construction IT in Chicago was named in 17 of 40. Its own construction page doesn't name the area at all. Full results for the IT firms, anonymised, are on our page on AI SEO for MSPs and IT resellers.
Put simply: reviews get you into the running, especially where there's a lot of competition. Whether you get picked, on every assistant, depends on whether the AI can tell what you do and where.
Why do reviews still matter if ChatGPT doesn't read Google's?
For three reasons.
Google's AI does read them. Google's own help page says local prominence is "based on info like how many websites link to your business and how many reviews you have," and that "more reviews and positive ratings can help your business's local ranking" (Google Business Profile Help). AI Mode and AI Overviews draw heavily on that same profile data. That is why the 5.0-rated dealer above was named by Google's assistants and by nobody else.
Customers check. In BrightLocal's 2026 consumer survey of 1,002 US adults, 97% said they read reviews for local businesses. 68% will only use a business rated 4 stars or higher, up from 55% the year before. 47% won't use a business with fewer than 20 reviews (BrightLocal, Feb 2026). Being named by an AI assistant gets you a look. Your reviews decide whether the customer calls.
Experts rank reviews high for Maps, lower for AI. In Whitespark's 2026 survey of 47 local search experts, a high Google rating ranked 6th and the number of Google reviews 9th out of 187 factors for the Google Maps results. For AI search, the same survey put citations first. As the report puts it, "In AI SEO, mentions (citations) are the new link" (Whitespark, Nov 2025). That is expert opinion, not measurement, but it matches what we saw.
How many Google reviews do you need?
There's no magic number, and Google doesn't publish one. Three useful marks:
The customer floor: 20. Nearly half of consumers won't use a business with fewer than 20 reviews, per BrightLocal's 2026 survey.
Your market's leaders. Look up the firms that AI names for your main question, and count their reviews. In our tests, crowded-market leaders had 100 or more. In small towns, leaders had a handful.
Recent, not just many. 74% of consumers in the same survey look for reviews written in the last three months. A steady flow beats a burst from two years ago.
If you're far below the leaders in a crowded market, reviews are probably your first job. If you're level with them and still not named, reviews aren't your problem.
What to do next
Ask every customer for a review, every time. Make it one link, sent the day the job is done. Reply to every review.
Get reviews where ChatGPT looks too. Yelp, or the main directory for your industry. Find which sites appear under the answers for your questions, and start there.
Fix what reviews can't. The right Google profile category. A homepage that says what you do. One page per service and place, titled the way a buyer would ask. These were the gaps behind the 5.0-rated firms that ChatGPT and Claude never named.
Test all four assistants separately. They read different sources and often name different firms. We break down the ChatGPT-versus-Google gap in ChatGPT vs Google AI Mode.
Keep the basics running. Reviews are item one on our local SEO checklist for the AI era because they now do three jobs at once: ranking, trust, and AI corroboration.
Reviews are the part of local SEO your customers write for you. The rest, making it obvious what you do and where, you have to write yourself. That is what we handle in local SEO and "near me" visibility.
Not sure whether reviews are what's holding you back?
Our written audit checks your reviews against the firms AI names in your market, runs your buyer questions on ChatGPT, Google's AI Mode, Gemini and Claude several times each, and shows which gap to close first. It's free, and you get a document, not a sales call.
This article is written by
Founder & Lead Strategist at CognitiveAISEO. Marvin has spent 20+ years in search and 4 years as an account manager at Lenovo, managing a book of 500+ partner accounts: resellers, MSPs and integrators. His posts draw on CognitiveAISEO's own tests: the same buyer questions asked 10 times each on ChatGPT, Google AI Mode, Gemini and Claude.
