Revenue started coming in from ChatGPT. Here's how to check yours in GA4.

⏰ The short version

• AI traffic is already in your GA4. Nothing to install — you can look right now.
• Path: Reports → Acquisition → Traffic acquisition → search chatgpt in Session source
• One brand's month: 279 sessions, 7 conversions, ~$3,000 in revenue from ChatGPT alone. That's a 2.5% conversion rate — above their site average.
• Why it converts: these visitors arrive already recommended. They skipped the comparison step.
• If you see zero, that's information too. It means AI isn't naming you yet.

How this article happened

Someone was reviewing acquisition data and found a source they'd never seen before: chatgpt.com.

They clicked in. Over $3,000 in attributed revenue. No ad spend on that channel — it wasn't a channel anyone had built. A shopper had asked ChatGPT for a recommendation and AI named the brand.

Reading about GEO is one thing. Watching money land in your own account is another.

Check it right now

Nothing to set up. GA4 is already collecting this.

Reports → Acquisition → Traffic acquisition, then type chatgpt into the search box.

The sources that show up:

Source	What it is
chatgpt.com	ChatGPT — by far the biggest
gemini.google.com	Google Gemini
perplexity.ai	Perplexity
claude.ai	Claude
copilot.microsoft.com	Microsoft Copilot

To see them together, use a regex filter:

chatgpt|perplexity|gemini|claude|copilot

💡 What about Google AI Overviews? AI Overviews live inside Google's results page, so they don't get a separate source. That traffic is mixed into your regular google / organic. There's no clean way to split it out today.

The actual numbers

One brand, one month:

Source	Sessions	Conversions
chatgpt.com	279	7
gemini.google.com	43	0
claude.ai	11	0
perplexity	5	0
copilot	3	0

Two things stand out.

ChatGPT dominates. Everything else combined is under a quarter of it. Right now, planning for AI search is mostly planning for ChatGPT.

The conversion rate was 2.5% — higher than this brand's site average.

Why AI traffic converts better

It makes sense when you think about who's arriving.

Someone from search is still comparing. They open ten tabs, read reviews, check prices. They haven't decided.

Someone from AI arrives already recommended. They asked, something answered "this one's good," and they clicked. The comparison stage happened inside the AI, and you won it.

Which reframes the whole thing: getting into AI answers isn't about traffic volume. It's about inheriting pre-sold traffic. The shelf is short, but everyone on it is warm.

If you see zero

That's not a failure — it's a baseline.

It means AI isn't naming you yet, which puts you with most brands. We tested 20 US indie brands and 18 of them came up in zero of 30 questions.

So zero isn't the problem. Not knowing you're at zero is the problem.

What to do after you look

1. If you see traffic — check the landing pages. That tells you which of your pages AI is quoting. Look at how that page is structured, then write more like it.
2. If you see zero — start with what your customers actually ask AI. Where to find the 30 questions covers how.
3. Either way — screenshot today's numbers. You need a starting point to measure against later.

Honest footnotes

• The figures above are one brand, one month. Category and size change everything.
• GA4 classifies by referrer, so traffic from in-app browsers or copy-pasted links falls into direct. Your real AI traffic is likely higher than what you see.
• Conversion and revenue depend on how your GA4 conversions are configured.