5 GEO myths that can cost you money

Short answer. Five GEO myths can cost you money: that it doesn’t need SEO, that you need an llms.txt file or special schema, that blocking every AI bot is free, that asking ChatGPT once is enough, and that someone can guarantee you the top spot. All five clash with official documentation from Google, OpenAI, Anthropic and Microsoft, or with studies that publish their method.

We checked every fact in this article against its source on 25 October 2026.

Can GEO work without SEO?

No. When an AI assistant searches the web, it answers from what it finds in a search index, and that index is fed by the same things as SEO: pages that can be crawled, are indexed and are clear. Google says it plainly: “There are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary.” The page has to be indexed and eligible to appear in Search with a snippet.

It’s the same outside Google. Microsoft explains that Copilot, with web search turned on, sends queries to the Bing search service to ground its answers. And when ChatGPT doesn’t search, it answers from what it learned in training.

34.5% of ChatGPT prompts triggered a web search in February 2026, down from 46% at the end of 2024. Semrush, US sessions from its clickstream panel.

What it costs: paying for “GEO” that forgets about indexing. If Google or Bing don’t have your page right, the AI that searches them doesn’t either.

Do I need an llms.txt file or special schema for AI?

No. Google says so in its guide to AI features: “You don’t need to create new machine readable files, AI text files, or markup to appear in these features.” It adds that there’s no special schema.org structured data you need to add either.

Independent studies agree. SE Ranking analysed around 300,000 domains and found no link between having an llms.txt file and getting cited by AI. Ahrefs compared 1,885 pages that added schema with a control group, 30 days before and 30 days after the change. These were pages AI already cited a lot.

−4.6% in AI Overview citations after adding schema, compared with the control group. In AI Mode (+2.4%) and ChatGPT (+2.2%), the effect can’t be told apart from zero. Ahrefs, May 2026.

Ahrefs warns that both groups were already declining beforehand, so the drop may reflect that trend rather than the schema. Its conclusion: schema had no clear effect, positive or negative.

What it costs: development hours spent on files that don’t move the needle today.

Does blocking AI bots protect my site at no cost?

It depends on which bot you block. OpenAI, Anthropic and Google separate the crawlers that train models from the ones that power their search.

Does blocking AI bots protect my site at no cost?

Crawler	What it’s for	If you block it
OAI-SearchBot (OpenAI)	ChatGPT search	Your site isn’t shown in ChatGPT search answers
GPTBot (OpenAI)	Content that may be used to train its models	You ask for it not to be used for training; OpenAI says each setting is independent
Claude-SearchBot (Anthropic)	Improving Claude’s search results	Anthropic doesn’t index your content for its search, which may reduce your visibility
ClaudeBot (Anthropic)	Content that may be used for training	You ask for your future content to be left out of training
Google-Extended (Google)	Training future Gemini models and grounding answers in the Gemini app and Vertex AI	Doesn’t affect your inclusion in Google Search and isn’t a ranking signal

OpenAI spells it out: you can allow OAI-SearchBot to appear in search results and block GPTBot. Changes to robots.txt take about 24 hours to show up in its search.

What it costs: a “block anything that sounds like AI” rule can take you out of ChatGPT and Claude without anyone noticing. If you don’t want your content used for training, block the training crawlers and let the search ones through. We explain how in our guide on whether your website is blocking AI.

Is asking ChatGPT enough to know whether I show up?

No. AI answers change from one time to the next, and a single question tells you almost nothing. SparkToro and Gumshoe analysed 2,961 answers from ChatGPT, Claude and Google’s AI to 12 prompts, with around 600 volunteers.

Less than 1 in 100: the chance that ChatGPT or Google’s AI repeats the same list of brands in two answers. In the same order, the chance drops below 1 in 1,000. SparkToro and Gumshoe, January 2026.

On top of that, everyone asks in their own way. In that study, 142 questions written by people on the same topic (choosing headphones for a relative who travels) barely resembled each other: their semantic similarity was 0.081.

That’s why you have to measure with many answers, always to the same questions, and give every percentage with its margin of error.

If you appear in 3 out of 10 answers, your real presence could be anywhere between 11% and 60% (95% Wilson interval). With 29 out of 96, the range narrows to 22–40%.

What it costs: making investment decisions from a screenshot. One day you show up and the next you don’t, without anything having changed.

Can anyone guarantee I’ll come first in AI?

No one. Google says it about classic search: “No one can guarantee a #1 ranking on Google.” With answers that change on every query, even less so.

There are no shortcuts either. The famous “up to 40% more visibility” comes from the paper that coined the term GEO (KDD 2024), and it was measured in a benchmark, not in real businesses. A later benchmark, C-SEO Bench (NeurIPS 2025), concluded that most of the methods it tested are largely ineffective and often hurt rankings.

And tricks carry risk. Google’s definition of spam includes “attempting to manipulate generative AI responses in Google Search”.

What it costs: paying for a promise no one can keep and, at worst, exposing yourself to a penalty.

So what does work?

What works is less flashy, but measurable:

• Access: search crawlers can read your site as text.
• Consistent facts: name, services, prices and opening hours that match on your site, your Google Business Profile and directories.
• Content that answers: one page per real question, with the answer up front and a visible date.
• Honest measurement: a fixed panel of questions, with its margin of error.

A typical case: a language school publishes its prices only in a PDF and, without knowing it, blocks OAI-SearchBot. ChatGPT search won’t show its site in its answers. Unblocking the crawler and putting the prices in text is a better starting point than any new file.

Frequently asked questions

Does any of these myths affect you?

Our free diagnostic checks in a few seconds whether AI crawlers can get into and read your site. How the main assistants describe you today is what we measure in the full diagnostic, with data and its margin of error, and with no ranking promises.

If you then want us to make the changes and improve them month by month, we explain how in services. And if you’re missing the basics, start with what GEO is.