Why Google and ChatGPT show different results... and what NZ Businesses need to do about it!

Google something, then ask ChatGPT the same question, and the answers rarely match. That's not inconsistency for its own sake, the two systems are built to answer questions in genuinely different ways, using different information at different points in time.

It's not, as it's sometimes put, that Google prefers blog posts and ChatGPT prefers checklists. The real difference is architectural, and understanding it matters more than guessing at content formats.

Why the Answers Actually Differ

Google's AI Overviews still work from Google's live search index, when someone searches, the system retrieves currently-ranked, crawled pages and summarises the most relevant ones in real time. If your site is well-optimised and ranks, there's a direct, fairly immediate path to being cited.

ChatGPT works differently. Its answers draw on a mix of training data, everything it learned before a fixed point in time and, when web search is switched on, live retrieval layered on top. For a well-known entity, ChatGPT's confidence comes largely from how consistently that entity showed up across everything it was trained on. For a smaller or local business, that training-time exposure is usually thin to nonexistent, which means live retrieval and, more importantly, cross-source consistency carry most of the weight.

This is why a business can rank well on Google and still get skipped by ChatGPT, or the other way round. Google is checking whether your page is currently the best-ranked answer to a live query and ChatGPT is checking whether it has ever built enough confidence in who you are, from enough independent places, to name you at all.

What This Means for NZ Businesses

For Google and AI Overviews, the fundamentals still apply: technical SEO, clean crawlability, schema markup, and content that answers specific questions directly and concisely. This is largely the same work that earns a page a strong ranking in the first place.

For ChatGPT, ranking mechanics matter less than consistency and corroboration. A business's name, services, location and category need to match everywhere they appear - website, Google Business Profile, directories, any independent site that mentions them. ChatGPT has no way to verify a claim it's only encountered once, from the business itself. Independent, repeated mentions saying roughly the same thing are what build the confidence needed to be named.

A well-optimised website is necessary for both. It's sufficient for neither on its own. Google without ranking signals won't cite you, and ChatGPT without independent corroboration won't name you, no matter how well your own site is written.

Where to Focus First

Start with what your business is actually known for, and check whether that's stated the same way everywhere it appears online, not just your website, but your Google Business Profile, directory listings and any third-party mentions. Inconsistency here undermines both systems, but it specifically stalls ChatGPT, which has no ranking signal to fall back on when the picture is unclear.

From there, strengthen the two separately. For Google, make sure your highest-value pages are genuinely well-optimised, fast, crawlable, structured, answering real questions directly. For ChatGPT, look for opportunities to be mentioned independently: local directories, industry associations, press coverage, reviews, anything that isn't you talking about yourself.

Then test both directly. Search your own key terms in Google and see what's cited in the AI Overview. Ask ChatGPT the same real questions your customers ask and see whether your business comes up at all. The gap between the two tells you which system needs the work.

Frequently Asked Questions

Does optimising for Google automatically help with ChatGPT? Partially. Technical SEO and clear content help both, but ChatGPT weighs cross-source consistency and independent validation more heavily than live ranking. Strong SEO alone doesn't guarantee a ChatGPT mention.

How do I check if my website is optimised for ChatGPT? Ask ChatGPT the actual questions your customers ask, regularly, and note whether your business appears. There's no equivalent to Search Console for this yet, direct testing is currently the most reliable method.

Why does ChatGPT recommend a competitor with a worse website? Usually because that competitor is mentioned more consistently across independent sources, not because their website is better built. ChatGPT is weighing corroborated confidence, not page quality alone.

This is the same underlying work the AI Visibility Engine™ is built around: entity clarity, structured content, and independent authority all feed into whether either system trusts a business enough to include it.

AI can't recommend what it doesn't understand.