When an AI engine gets your brand wrong, the fix is almost never in the AI itself. It is in the material the engine reads. Most errors trace back to one of three causes: old training data, wrong or conflicting sources found through live search, or confusion with a similarly named company. Each has a different remedy, so the first job is working out which one you are dealing with.
This guide walks through how to diagnose an error, what to fix first, and what to expect afterward. It is written for marketers and owners, not engineers.
How often do AI engines get facts wrong?
Often enough to take seriously. There is no solid public study measuring errors about brands specifically, so the best evidence comes from news. A study by 22 public broadcasters found that 45% of AI assistant answers had at least one significant issue, across every language tested. Columbia’s Tow Center found AI search tools gave incorrect answers to more than 60% of queries about the source of news quotes.
The tone of the errors matters too. In the same Tow Center work, only 15 of ChatGPT’s 134 incorrect citations used hedging language. If the news studies are any guide, AI rarely signals uncertainty, so a wrong fact about your brand is likely to be stated with confidence.
What are the three causes?
| What you see | Likely cause | Main fix |
|---|---|---|
| Old prices, products, leadership or name | Training data predates the change | Publish current facts widely; make old pages redirect or update |
| A specific wrong claim, with a cited link | A wrong or outdated source | Correct the source, or outweigh it with accurate coverage |
| Details from a different company | Entity confusion | Strengthen entity data: schema, sameAs, Wikidata, consistent naming |
| Vague or invented details, no sources | Too little information exists | Build more accurate mentions in context |
Stale training data. A large language model only knows what was in its training data up to a knowledge cutoff. OpenAI’s current API models list knowledge cutoffs in spring 2026, and Anthropic’s newest Claude models were trained on data up to June 2026. Anything you changed after that reaches the model only through live search.
Wrong sources. When an engine searches the web, it repeats what it finds. If an old directory listing, a reseller page or an outdated article ranks well, the engine may quote it. This is the most fixable cause, because you can see the source.
Entity confusion. If your name is shared with another company, a place or a common word, engines can blend facts together. An entity is a thing a search engine or model treats as distinct, and clear signals help it keep you separate.
A fourth cause sits underneath all of these: a hallucination, where the model fills gaps with plausible but invented detail. Hallucinations are more likely when there is little clear information about your brand to draw on.
How do you diagnose the error?
Treat it like a bug report. For each wrong answer, record:
- The exact prompt used, such as “What does [your brand] charge for its basic plan?” or “Who founded [your brand]?”
- The engine and mode (ChatGPT with or without search, Gemini, Perplexity, Google AI Overviews).
- The wrong claim, word for word.
- Any sources cited, with URLs.
- Whether the error appears on repeated runs.
Run each prompt several times, because answers vary from run to run. An error that shows up once in ten runs is a different problem from one that shows up every time. If a source is cited, open it: the wrong fact is often sitting right there.
What should you fix first?
Work from the inside out.
Your own site. Make sure your homepage, about page, pricing and product pages state current facts clearly in plain text. Update or redirect old pages rather than leaving them live. If you move to a new domain, Google recommends keeping redirects generally at least 1 year. Check that robots.txt does not block retrieval crawlers like OAI-SearchBot or PerplexityBot, since OpenAI says pages that opt out of OAI-SearchBot will not be shown in ChatGPT search answers.
Structured identity. Add Organization schema with sameAs links to your official profiles. Google says Organization markup can help it disambiguate your organization. If you qualify, make sure your Wikidata entry is accurate, following Wikidata’s own guidelines and backing each fact with a public reference. Our guide on making your brand a known entity covers this step by step.
Official profiles. Align your name, address, description and founding facts across Google Business Profile, LinkedIn, app stores, marketplaces and review sites. If you have a knowledge panel, Google says panels update from the web and also from feedback by the entities depicted, so claim and correct it where you can.
Third-party sources. Contact publishers or directory owners hosting outdated facts and ask for a correction, with evidence. For Wikipedia, use the talk page: the conflict of interest guideline discourages editing your own article directly.
Feedback tools. Most AI apps let you flag a bad answer. Use them, but treat this as a minor step. There is no public evidence that a single report changes how a brand is described.
How do you outweigh wrong information?
Sometimes you cannot remove the bad source. An old article stays up, or a copied listing lives on dozens of sites. The practical answer is to make accurate information more common and more current than the error.
That means consistent, correct brand mentions on real, indexed publications, stating the facts you want repeated in the right context: what you do, for whom, where, and what changed. Engines that retrieve live are then more likely to find several agreeing sources, and future training runs can pick up the corrected picture too. This is where approved brand facts matter: every mention should draw from one checked set, so you do not create new inconsistencies while fixing old ones.
If the problem is less about facts and more about reputation, such as old negative coverage dominating answers, that is a reputation management job. Our sister service The Blue Ocean ORM focuses on how brands appear on Google and in AI answers in those cases.
What should you expect after fixing the sources?
Two clocks run at once. Answers built from live search can change once corrected pages are crawled and indexed; OpenAI says robots.txt changes alone take about 24 hours to affect ChatGPT search. Built-in model knowledge changes only when a new model ships, and labs release new versions every few months. Some errors fade quickly; others linger until the next model.
Nobody can promise when a given engine will stop repeating an error. Re-run your prompt set monthly, keep a log, and watch the share of runs that get the facts right. If you want help finding where the errors come from, you can get a free AI visibility check that shows what the main engines say about you today.
What to do next
- Write down the five most important facts about your brand and check your own site states each one clearly.
- Run your diagnosis prompts several times in ChatGPT, Gemini and Perplexity, and record any cited sources.
- If you changed your name recently, read our playbook for brands AI still knows by an old name.
- Once AI describes you correctly and names you, growing how consistently ChatGPT recommends you for your topics is the job of The Blue Ocean GPT.
Frequently asked questions
Can I ask ChatGPT or Gemini to correct wrong information about my company?
Not directly. There is no form that edits what a model says about a brand. You can use the feedback buttons inside the apps, which is worth doing, but the lasting fix is to correct the sources engines read: your own site, your official profiles, structured data, and the third-party pages that repeat the error. Then add accurate, consistent coverage on real publications.
Why does AI still use our old prices, products or name?
Usually because the model's training data predates the change. Every model has a knowledge cutoff, and anything newer has to come from live web search. If old pages still rank or are widely copied, retrieval can repeat them too. Update or redirect old pages, refresh your profiles and make sure the new facts appear on independent publications.
How long does it take for AI to stop repeating wrong facts?
There is no reliable timeline. Retrieval-based answers can change once corrected pages are crawled and indexed, which OpenAI and Perplexity say can take around a day for robots.txt changes alone. Built-in model knowledge only changes when a new model is trained and released, which happens every few months. Re-check regularly rather than expecting a fixed date.
Is it a hallucination or a bad source?
Check what the engine cites. If it links to a page that contains the wrong fact, the problem is the source, and fixing or outweighing that page is the remedy. If it cites nothing, or cites pages that say something different, the model is filling gaps on its own, which usually means there is too little clear, consistent information about your brand online.
Should I edit our Wikipedia article to fix errors?
Not directly if you work for the company. Wikipedia asks people with a conflict of interest to propose changes on the article's talk page instead, and paid editing must be disclosed. Bring reliable published sources that support the correction. Fixing Wikidata, your own site and other references usually helps more and carries fewer risks.
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