AI search tools repeated a made-up idea within a week
AI search research
Researchers planted an invented concept on websites that AI assistants trust, and within a week it was appearing in their answers. The same speed applies to honest mistakes sitting on directories and review sites that describe your business.
What the researchers did
Search Engine Journal reports on a paper by independent researchers who tested how easily AI search tools absorb new information. They invented a concept and posted about it on websites that AI search tools are known to cite. Within a week, several English-language AI search tools were citing the invented concept in their answers.
The result was uneven. According to the report, other topics the researchers tried mostly did not make it into AI answers. That makes this a small, specific test. It cannot predict what will happen for every subject or every business. The full details sit with the researchers' paper, and the coverage so far comes from Search Engine Journal's write-up.
Even with those limits, the lesson is easy to grasp. AI assistants build their answers from a fairly small set of sources. When those sources publish something, it can show up in AI answers quickly, whether it is accurate or invented.
Why the sources matter more than the rankings
Many business owners still judge their visibility by where they rank in Google. AI assistants work differently. They pull from their own chosen sources, and those sources are often different websites from the ones near the top of Google's results.
Sayu's study compares the sources that ChatGPT, Gemini, Perplexity and Claude quote for UK searches with the sites Google ranks. The gap between the two is the reason to look beyond your Google position.
So the useful question for a UK business is simple. When someone asks an AI assistant about your company, your products or your sector, which websites does it quote? Those pages shape the answer. If they carry out-of-date prices, an old address or a wrong description of what you do, an AI assistant may repeat it to a potential customer.
The research also carries a warning. If invented ideas can travel this fast, so can honest mistakes. A directory listing with your old phone number or a review site with a wrong opening time can turn into a confident AI answer. The fix is dull but effective: keep accurate facts about your business in the places AI assistants actually read, and make them easy to find on your own site.
What this means for UK businesses
AI assistants repeat what their sources say, and those sources may be sites you have never checked. Treat them as part of your shop window. Keep the advice to accuracy and being findable: give AI assistants correct information about you, in plain words, in places they already trust.
A short, regular check like this costs little time. It helps the answers people see about your business match the facts.
Analysis compiled by Sayu (sayu.co.uk), based on reporting by Search Engine Journal.
