Ask ChatGPT, Claude, Gemini and Google AI Overviews the same buying question and the brands they name overlap between 1% and 11%. We know because we track 9.8 million brand mentions across all four. If your agency reports a single AI visibility score, it is describing a situation you are not in.
| Engine pair | Brand overlap |
|---|---|
| Claude vs ChatGPT | 10.6% |
| Gemini vs ChatGPT | 10.9% |
| Claude vs Gemini | 11.2% |
| Google AI Overviews vs ChatGPT | 1.0% |
| Google AI Overviews vs Claude | 0.8% |
Rankxa production data, 30 days to 11 September 2026. Sample of 52,756 prompt comparisons on the largest pair.
These are not one channel. They retrieve from different places, name different companies, and reward different work.
3.3 brands per answer on average, against 6.1 to 7.2 for the chat engines.
Both are Google products. They agree on named brands about 1% of the time.
GPTBot and ClaudeBot are training crawlers. Their traffic does not predict whether you get quoted.
A site that disallows OAI-SearchBot cannot appear in ChatGPT search answers. It is binary.
Every engagement runs the same sequence. The order matters, because each step is wasted without the one before it.
We confirm ChatGPT, Claude, Gemini and Perplexity can reach your pages at answer time. This is the gate that sits upstream of everything.
We track the questions your buyers ask before they shortlist, across all four engines separately, and record who gets named and in what order.
One page per real buying question, structured so a model can lift a clean answer out of it. Company pages account for roughly 60% of citations on commercial queries.
We earn mentions of your company by name across independent sites. Branded mentions correlate 0.664 with AI visibility. Backlinks correlate 0.218.
Rankxa reruns the full prompt set every week and reports movement by engine, not blended, so you can see which work moved which answer.
The tracker we built and run ourselves, not a reseller license.
Written to the questions your buyers ask, not to keyword volume.
Coverage where your company is named in the text, not only linked.
Movement by engine, tied to the work that produced it.
This is not run by a black box of tools. It is a team of Growth Architects who plan, build and optimize it, using AI where it accelerates the work and human judgment where it actually matters. Different specialists, one accountable team.
Meet the team →
Michael · Engineering Lead
Amal · Automation Architect
Bryn · Solutions Engineer
If we can't increase your revenue by the 6 month mark, our team works for free until we do.
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It makes your company appear inside the answers AI assistants give when a buyer asks for a recommendation. That means three things: confirming the engines can retrieve your site, building pages that answer the questions buyers actually ask, and earning mentions of your company by name across independent sources. It is measurement plus content plus coverage, and it is measured per engine because the engines disagree.
Traditional SEO optimizes for a ranked list of blue links. AI search returns a synthesized answer that names a handful of companies. The overlap between the two is smaller than most people assume. Ahrefs found only about 8% of ChatGPT citations rank in Google's top ten for the same prompt. You need both, and they are not the same work.
No, and any agency that guarantees it is selling something. OpenAI states plainly that placement is not guaranteed. What we can do is remove the technical blocks, build the pages the retrieval layer can use, earn the mentions that correlate with visibility, and measure the result every week so you can see whether it is working.
The retrievability fix is immediate, sometimes same day. Page and mention work compounds over months rather than weeks. One retail client moved from 14% to 65% share of relevant AI answers in three weeks, but that is the fast end and it followed an unusually clean technical starting point. Plan on a quarter before the curve is convincing.
Because a blended score describes a situation no company is actually in. In our data the three chat engines agree with each other about 11% of the time, and Google AI Overviews agrees with them around 1% of the time. Averaging those four numbers produces a figure that is true of nothing.
Yes. Rankxa is available to agencies as a white label measurement layer, and we run generative search programs on behalf of other agencies' clients. See our generative SEO for agencies page.
We will run your category's buying questions through ChatGPT, Claude, Gemini and Google AI Overviews, check whether each one can retrieve your site, and show you who is being named instead of you.
