Your brand might be winning one ChatGPT prompt and losing the next four in the same buyer journey. That's the uncomfortable finding from Semrush's analysis of 50,000 brands across 1,094 topic categories: prompt-level visibility tells you almost nothing about whether you're actually owning the conversation that matters to your pipeline.
The study, conducted in partnership with Kevin Indig and Growth Memo, tracked ChatGPT responses from January through June 2026. Each category included five representative prompts covering the questions a buyer would typically ask: definition, comparison, alternatives, use case, and buying question. Think "payroll software" or "small business banking" as the topic, with five prompts mapping the research arc a prospect follows before shortlisting vendors.
The headline number: only 15.2% of categories had a clear owner. That means 85% of the topics where your buyers are asking ChatGPT for guidance have no dominant brand. The field is open.
What "Ownership" Actually Means
Semrush defined a category owner as the brand with the highest share of mentions, appearing in at least four of five related prompts, and leading the runner-up by at least 5 percentage points. That's a high bar, and most brands don't clear it.
Another 31.2% of categories had an "emerging leader," meaning one brand appeared in at least three prompts but without the required margin. The remaining 53.7% were unsettled, with no brand appearing in even three of five prompts. If you're tracking a single prompt and celebrating a mention, you're measuring noise.
The competitive picture gets worse when you look at where the volume is. Only 11.3% of topics in the top half of AI search demand had a clear owner, compared with 19% in the bottom half. The top half accounted for 98% of the AI search volume in the sample. Translation: the categories with the most buyer activity are the ones with the least brand dominance.
SEO Metrics Don't Predict Who Wins
Here's where the study challenges conventional assumptions. Traditional SEO strength didn't reliably predict which brands owned ChatGPT topics. Semrush compared category owners with runners-up across branded search volume, organic traffic, and Authority Score. Owners had higher branded search volume in 55.7% of comparisons, higher organic traffic in 48.4%, and a higher Authority Score in 52.5%.
Branded search volume was the only metric that reached statistical significance, and even that was barely better than a coin flip. As Indig noted in his analysis:
Traditional SEO metrics aren't enough to explain who owns a topic. While they play their role, there's more to it.
Kevin Indig
This matters for budget conversations. If your CFO is asking why you're investing in AI visibility when you already rank well on Google, the answer is that ranking well on Google doesn't guarantee you show up consistently when buyers ask ChatGPT for recommendations. The correlation is weak enough that you need a separate measurement and investment strategy.
Citations and Mentions Don't Align
The study also found a disconnect between being cited and being mentioned. Semrush measured ownership by brand mentions in ChatGPT's answer text, not by the links cited below. Only 21% of the most-cited domains in a category were also the most-mentioned brand.
This distinction matters for how you think about content strategy. Getting your URL into ChatGPT's citation list is not the same as getting your brand into the answer. A buyer asking "which payroll software should I use?" cares about the names in the response, not the footnotes. If your content is being cited but your brand isn't being recommended, you're doing the work without capturing the value.
Research from Ahrefs found that brand mentions correlate 3x more strongly with AI visibility than traditional backlinks (0.664 vs. 0.218). The implication: your off-site brand presence, third-party mentions, and entity recognition may matter more than your own content's citation rate.
Durability Favors the Leader
The one piece of good news for brands that have established topic ownership: once you own it, you tend to keep it. Clear category owners stayed in first place in 90.4% of month-over-month comparisons. The typical lead for brands that retained first place was 2.9 percentage points. For brands that later lost first place, the typical lead was just 1.3 points.
Narrow leads change hands frequently. Across emerging and unsettled categories, the top brand switched in 1,950 of 5,470 comparisons. If you're leading by a thin margin, you're not leading; you're fluctuating.
This creates a strategic imperative: the goal isn't to appear in ChatGPT responses occasionally. It's to build a wide enough margin that your position becomes durable. That requires consistent visibility across the full prompt set that defines a topic, not just the one prompt you happened to test.
What This Means for Pipeline Planning
For CMOs and CROs trying to model the impact of AI visibility on pipeline, the study offers a few concrete takeaways.
First, measure at the topic level, not the prompt level. A single prompt check tells you nothing about whether you're winning the buyer's research arc. Build prompt sets that mirror how your buyers actually research, then track share of mentions across the full set.
Second, don't assume your SEO position translates. The correlation between traditional SEO metrics and ChatGPT topic ownership is weak. You need separate instrumentation. Semrush's expanded AI Visibility Index found that 45% of marketing leaders cannot accurately measure their brand visibility within AI-generated answers. If you're in that 45%, you're flying blind on a channel that 50% of B2B buyers now use to start their software buying journey.
Third, prioritize margin over presence. Appearing in ChatGPT is table stakes. Owning a topic requires a 5-point lead and presence in four of five prompts. That's the threshold where durability kicks in. Below that, you're in a month-to-month fight.
Fourth, treat this as a content reallocation problem, not a content creation problem. The study suggests that broad SEO signals don't predict topic ownership. What does? Consistent, focused coverage of the questions that define your category. That means killing the glossary pages that don't contribute to topic ownership and doubling down on the content that does.
The 85% Opportunity
The most actionable finding in the study is also the most overlooked: 85% of ChatGPT topics have no clear owner. That's not a threat. That's a land grab.
For brands willing to build systematic visibility across the prompt sets that define their categories, the opportunity is to establish durable ownership before competitors figure out the game. The brands that own topics in ChatGPT today will likely still own them in six months. The brands that don't own anything yet have a window to claim territory that's still uncontested.
The math here is straightforward. If your category is in the 85% without a clear owner, the cost of building topic ownership is lower than the cost of displacing an entrenched leader later. If your category already has an owner and it's not you, you need to know that now, not after you've spent two quarters on content that doesn't move the needle.
Model it. Measure it. Move.
