.png)
AI search is still a sliver of total e-commerce traffic. We tracked traffic across hundreds of e-commerce stores from January 2025 through March 2026 to measure ChatGPT's growing role as a discovery channel. Let’s walk through the results.
AI search is 1.44% of search traffic, but growing fast
In Q1 2026, AI search accounted for 1.44% of total search sessions across ThoughtMetric brands. Organic search made up the other 98.56%.
AI search sessions surged through mid-2025, with month-over-month increases of +112%, +167%, and +26% between April and July.
Growth has moderated since then, but AI search sessions were still up 40% month-over-month in March 2026. Organic search, by comparison, bounced between small gains and losses over the same period.
AI search visitors convert at 1.8x the rate of organic
The more interesting finding is conversion performance. Across ThoughtMetric brands in Q1 2026, AI search traffic converted at 1.81%, compared to 1.01% for organic search (1.8x higher conversion from AI search).
Someone asking ChatGPT about a product is often further along in the buying process than someone browsing Google results. The conversational format also tends to surface specific product recommendations, which means the visitor who clicks through already has context on what they are looking at.
What this means for e-commerce brands
AI search is not replacing organic search anytime soon. However, it is not something we should ignore especially given the conversion rate advantage.
A few things are worth doing now:
1) Make sure your attribution tool can isolate AI search as a traffic source. ThoughtMetric breaks down traffic, revenue, and much more, by source, including AI search so you can see exactly how much revenue it is driving.
2) Pay attention to the content that AI models tend to surface. Product descriptions, FAQs, and customer reviews carry more weight in conversational AI than keyword-heavy blog posts. Structured, clear information performs better in this context.
3) Track trends over time. The month-over-month numbers in this report show that AI search traffic can move in bursts, often tied to updates from OpenAI and other providers.
The bottom line
AI search traffic is small but high-quality. It converts better than organic search, and its growth over the past several months has been significant. E-commerce brands that start tracking it now will have a clearer picture of how discovery is changing, and a head start on optimizing for it.
Book a demo to learn more about how ThoughtMetric tracks AI search.
.png)
.png)