I recently came across some eye-opening data highlighting the distinct approaches Google AI and ChatGPT take in citing sources when it comes to retail information. While Google mentions retailers only 4% of the time, ChatGPT cites them 36% of the time. This significant gap of nearly nine times suggests that each platform guides shoppers in noticeably different directions, and this insight comes from the latest BrightEdge data.
Why is this important to us? Nowadays, millions of shoppers are relying on AI to discover deals and gift ideas. However, the process differs greatly between the top AI search platforms. Google tends to focus on what users are saying, while ChatGPT zeroes in on where you can actually purchase items.
Regarding what each AI prioritizes, Google AI Overviews are inclined to reference YouTube reviews, Reddit discussions, and various editorial sites. In contrast, ChatGPT frequently cites retail giants such as Amazon, Walmart, Target, and Best Buy.
Let’s break down the priorities further. Google AI Overviews tend to cite:
- YouTube reviewers and unboxings.
- Reddit threads and community consensus.
- Editorial reviews and category experts.
Meanwhile, ChatGPT emphasizes:
- Major retailer listings.
- Brand and manufacturer product pages.
- Editorial sources (secondary).
This citation divide is quite telling. On Google, retailers show up only about 4% of the time, as it leans more towards user-generated content and expert reviews—acting more as a research tool rather than a purchase assistant. Top reference sources include:
- YouTube
- Quora
- Editorial sites like CNET, The Spruce Eats, and Wirecutter
Conversely, ChatGPT features retailers about 36% of the time, functioning as both an explainer and a shopping assistant, hence why retailer links are far more prevalent. Key sources often cited include:
- Amazon
- Target
- Walmart
- Home Depot
- Best Buy
About the data: BrightEdge scrutinized tens of thousands of e-commerce prompts across Google AI Overviews and ChatGPT during the 2025 holiday season, identifying and categorizing citation sources. Domains were sorted by type—retailer, UGC/social, editorial, and brand—and directly compared using identical prompts.
The detailed report is available here: Who Does AI Trust When You Search for Deals? Google vs. ChatGPT Citation Patterns Reveal Different Shopping Philosophies
Inspired by this post on Search Engine Land.
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