Every month brings new shifts in how people find information online, and September 2026 is no different. We pulled our latest AI search data to see which platforms are winning attention, where AI models get their facts, and what that means if you want your brand to show up in an AI-generated answer. Here’s what the numbers say.

Google Controls About 75% of All AI Search Traffic

Google is still the biggest player in AI search by a wide margin. Between AI Overviews, AI Mode, and Gemini, Google’s ecosystem now handles about 75% of all AI search activity. AI Overviews alone reach roughly two and a half billion people every month, and they show up in about 67% of Google searches, depending on what someone types in.

ChatGPT comes in second, with over a billion monthly active users. That’s a massive audience on its own, but it’s still well behind Google’s reach. Recent reporting from TechCrunch put ChatGPT at roughly 900 million weekly active users earlier this year, and that number has kept climbing since.

Every other assistant, including Claude, Grok, Perplexity, and Copilot, makes up a small slice of the market. Claude gets talked about often online, but the day-to-day usage numbers are much smaller than people assume.

Because of this gap, the smartest strategy is to optimize for the Google family of models and ChatGPT first. We’ve found a strong correlation between the two: once a brand improves its visibility with Google and ChatGPT, it tends to see gains across the smaller platforms too, without extra work.

92% of AI Overview Users Never Click a Traditional Search Link

This is the stat that should worry anyone still relying on traditional search traffic. When someone sees an AI Overview on Google, they don’t scroll down and click a blue link about 92% of the time. They read the AI-generated answer, feel satisfied, and move on.

This lines up with what outside researchers are seeing too. A recent study covered by Search Engine Land found that zero-click searches have climbed to roughly 68% across Google as a whole in early 2026, and some AI Mode results are pushing that number even higher.

The takeaway is simple: getting a blue link on page one no longer guarantees a visitor. What matters now is whether your brand, product, or point of view actually shows up inside the AI answer itself.

Reddit’s Share of ChatGPT’s Citations Collapsed From 30% to 0.2%

We track which websites AI models cite most often, and the picture has changed a lot in just a few months. Back in May 2026, Reddit made up nearly 30% of all the sources ChatGPT relied on when answering questions. Today, that number has dropped to about 0.2%. Reddit went from being one of the biggest influences on ChatGPT’s answers to barely showing up at all.

That shift changed our own strategy. We had built tools specifically for Reddit engagement and outreach, and we’ve since scaled that back because it simply doesn’t move the needle the way it used to for ChatGPT.

Reddit Still Holds About 1% of Perplexity’s Citations

Reddit isn’t gone completely. It still plays a meaningful role for Perplexity, making up around 1% of the sources Perplexity cites. That’s much smaller than the 10% or more it used to represent, but it hasn’t disappeared the way it has for ChatGPT.

One technical note worth sharing: for a period, Google was wrapping citation links in AI Overview responses with a redirect (something like google.com/go) so it could track clicks. That made it harder to tell where the AI was really sending people. We’ve since resolved those links to their real destinations, so the data referenced here reflects where traffic is actually going, not just what Google’s tracking wrapper showed.

YouTube Is Now a Leading Source for Google AI Overviews

Google AI Overviews are increasingly pulling from long-form YouTube videos as a source. This is a big shift, and it’s one of the clearest opportunities available right now for brands that want to influence what AI models say about them.

That’s part of why we built a tool that generates YouTube videos designed to be understood by AI models, not just by human viewers. Early results have been promising. Beyond YouTube, Reddit, Facebook, and LinkedIn also still carry real weight as sources, though none of them dominate the way a single platform used to.

Here’s the full walkthrough of the September 2026 data, straight from our team:

Diversifying AI Sources Gives Every Business a Shot at Getting Cited

AI models are relying on a wider mix of sources than they used to, instead of leaning on just one or two dominant sites. That’s actually good news. It means any business, no matter how small, has a real shot at influencing what an AI model says, whether that’s through new content, new domains, or well-made videos.

We’re also tracking what the most-cited content has in common. Does it use bullet points? Does it include charts or other visual data? Does it feature original research? These patterns help us figure out what kind of content is most likely to get picked up and repeated by AI models.

You can see this data for yourself and check it every week on the rocketblue.ai AI Visibility Stats page, including a detailed breakdown of the most recent week.

Frequently Asked Questions

How much of AI search does Google control in 2026?

Google’s AI Overviews, AI Mode, and Gemini together account for about 75% of all AI search activity, with AI Overviews alone reaching around two and a half billion people a month.

Why don’t people click links after seeing an AI Overview?

About 92% of the time, people are satisfied with the AI-generated answer and never scroll down to click a traditional search result. Outside research shows zero-click search behavior across Google has climbed to roughly 68% overall in 2026.

Does Reddit still influence what ChatGPT says?

Not much anymore. Reddit made up nearly 30% of ChatGPT’s citation sources in May 2026, but that has dropped to about 0.2% today. It still holds a small amount of influence with Perplexity, around 1% of citations.

Why is YouTube becoming so important for AI search visibility?

Google AI Overviews increasingly cite long-form YouTube videos as a source. Brands that publish video content built with AI models in mind, not just human viewers, are seeing early gains in how often they get cited.

How many people use ChatGPT compared to Google’s AI tools?

ChatGPT has over a billion monthly active users, with weekly active users reported around 900 million by TechCrunch earlier in 2026. That’s large, but still well behind the reach of Google’s combined AI ecosystem.

Can a small business influence what AI models say about it?

Yes. AI models are pulling from a more diverse mix of sources than before, rather than leaning on one or two dominant sites. That opens the door for smaller businesses to get cited by publishing original content, launching new domains, and creating well-structured videos and articles.

This post was written by rocketblue’s content generator.

September 2026 AI Search Visibility Stats