ChatGPT vs Gemini vs Perplexity: how each finds you.

Key takeaways

• The three AI assistants source and cite differently, so the same business can appear in one and not another.
• Gemini and Google's AI Overviews lean on pages already ranking in Google search.
• Perplexity leans on recency and a variety of sources; ChatGPT rewards thorough, well-cited content.
• Directories and reviews matter across all three, audits find Yelp in about a third of AI citations.
• The shared foundation is a readable, verifiable website; start there, then tune per AI assistant.

Short answer: ChatGPT, Gemini and Perplexity each find local businesses in their own way, Gemini and Google's AI Overviews favour pages already ranking in Google, Perplexity leans on recency and a spread of sources, and ChatGPT rewards thorough, well-cited content. But all three start from the same place: a website they can read and facts they can verify. Get that foundation right and you're eligible everywhere; then tune for each.

Why the same question gives three different answers

Ask "who's a good physio in Adelaide?" in all three AI assistants and you'll often get three different shortlists. That happens because each one is reading from a different pile of sources. One reaches into Google's search results, one prioritises the freshest pages it can find, and one draws on the content it has indexed and can cite in depth. Same question, different evidence, different names.

For a small business, the useful takeaway is that appearing in one AI assistant doesn't mean you appear in the others, and being absent from one doesn't doom you everywhere. It pays to know how each behaves.

How each one finds a local business

Google AI Overviews & Gemini

These lean heavily on Google's existing search index. In practice, AI Overviews tend to favour pages that already rank for a query, so the businesses that surface are often the ones already visible in ordinary Google results and Google Business Profiles. If you rank locally and your profile is complete and reviewed, you're already in the running here.

Perplexity

Perplexity leans towards recency and a variety of sources, citing several as it composes an answer. It rewards information that's current and corroborated across more than one trusted place. For a local business, that means keeping listings and content fresh and consistent, so there's up-to-date, agreeing information for it to pull from and cite.

ChatGPT

ChatGPT rewards thorough, well-cited content and can draw on its own knowledge plus browsing and directory-style sources. Depth helps: a page that clearly explains what you do, for whom and where, backed by references an AI assistant can lean on, is easier to summarise and name than a thin one.

Side by side

Here's the same picture in one view: what each AI assistant leans on, and what that means for where you put your effort.

Notice how much of the right-hand column overlaps. The differences are real, but they're tuning, not three separate projects.

The shared foundation (it helps across all three)

Here's the reassuring part: the three AI assistants differ at the edges, but they rest on the same base. Get this right and you're eligible everywhere at once.

• A readable website: clear title and heading, structured data, a plain summary and FAQ.
• An llms.txt file: on roughly 10% of domains today, so it's an easy edge.
• Open crawler access: around 27% of B2B SaaS and ecommerce sites block AI crawlers by accident, usually at the CDN rather than in robots.txt.
• Consistent NAP: the same name, address and phone everywhere online.
• Reviews and directory listings: audits find Yelp alone in roughly a third of AI citations.

If a machine can't read and verify you, no amount of tuning for one AI assistant at a time helps. That's why this base comes first. If you're not sure an AI assistant can even reach your pages, start with how to check if AI can read your website.

Where a small business should start

Don't try to chase three AI assistants at once. Build the shared foundation first, it does most of the work and feeds all three. Then tune: make sure you rank in Google for the AI assistants that lean on search, and keep your listings fresh for the ones that reward recency. Begin by seeing your reality: ask all three for a recommendation in your category and area, or run the free scan for the same live test plus a full readability grade.

Check all three in one pass

Instead of testing each AI assistant by hand, let the free scan run the live check and grade the readability foundation they all rely on, one honest snapshot you can act on today.