Most companies approaching GEO make the same mistake: they treat AI search as a single channel and try to optimise for all of it at once. The reality is that the four major AI platforms serve very different audiences — and the right strategy depends entirely on who your buyers are and where they spend their time.
The four platforms are not interchangeable
ChatGPT has roughly 900 million weekly active users and drives nearly 80% of all AI-to-website referral traffic. If your buyers use AI to research decisions — and data suggests most now do — this is the primary battlefield. But ChatGPT's user base skews toward general, mainstream internet behaviour — entertainment, quick answers, broad research.
Claude, by contrast, has a fraction of ChatGPT's consumer numbers — but 70% of Fortune 100 companies use it, and roughly 80% of Anthropic's revenue comes from enterprise and developer workloads. If your buyers are technical decision-makers or enterprise procurement professionals, being visible in Claude is more commercially valuable than being visible in ChatGPT.
Perplexity serves a highly educated, research-oriented audience — consultants, analysts, journalists and academics. It has the highest citation accuracy of any major AI platform. When Perplexity recommends your company, users don't just see the name — they follow the source and read it. For professional services firms, medical device companies and financial services businesses, Perplexity is often the highest-value platform to appear in.
Gemini's reach is enormous — over two billion people monthly via Google's AI Overviews — but the commercial intent per user is lower than Perplexity or Claude. Its biggest strategic advantage is the compound effect: optimising for Gemini improves both your chatbot visibility and your presence in Google's AI Overviews, which are steadily displacing traditional search results.
The practical implication for your GEO strategy
Before spending time or money on GEO improvements, the most important question is: which platform does your buyer actually use? A medical device company targeting hospital procurement managers or clinical leads should prioritise Perplexity and Claude — the platforms their buyers use for rigorous, citation-backed research. A technology company targeting enterprise IT teams should start with Claude. A professional services firm targeting C-suite should cover ChatGPT and Claude equally.
This is one of the first things a Genivista audit establishes — not just whether you're visible, but whether you're visible in the right places for your specific buyer.
A quick reference guide
| Platform | Primary Audience | Best For | Key Signal |
| ChatGPT | Consumer & broad market | Technology, services, e-commerce | 79% of AI referral traffic |
| Claude | Enterprise & technical buyers | Enterprise software, DevOps, regulated industries | 70% of Fortune 100 use it |
| Perplexity | Researchers & analysts | Professional services, medtech, finserv, legal | 94% citation accuracy |
| Gemini | Google ecosystem & SMBs | SMBs, Google-dependent businesses, cross-market | 2B+ monthly via AI Overviews |
What this means for the "GEO or not" decision
The question we hear most often is: "Is GEO relevant for my business right now?" The honest answer is: it depends on where your buyers are. If your buyers use AI tools to research purchases — and the data suggests that over half of buyers in professional services and technology now do — then your AI presence is already part of your pipeline, whether you've built it intentionally or not.
The companies that will have the hardest time in two to three years are those who assumed this was someone else's problem for a bit longer. Early movers are building AI presence that compounds. The window to be a first mover in most Irish and UK sectors is still open — but it won't be indefinitely.
Want to know which AI platforms your specific buyers use — and whether you show up in them? That's exactly what the Genivista AI Visibility Audit answers.
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