Fundamentals
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What is the difference between ChatGPT Search and Google AI Overview?
ChatGPT Search is a chat interface with live web retrieval inside ChatGPT. Google AI Overview is a summary box placed at the top of standard Google results. Different layers; similar source mechanics underneath.
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What data sources do AI models use to answer questions about brands?
Training data (the corpus the model learned from), retrieval data (live web pulled at query time), structured knowledge (Wikidata, Knowledge Graph), and increasingly Reddit, YouTube, and forum content.
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Why does ChatGPT seem to pull my company’s Wikipedia article verbatim when I ask about us?
Because Wikipedia is one of the most heavily weighted training and retrieval sources for every major AI engine. If a company has a Wikipedia article, the AI response will closely follow it.
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How do AI models handle disambiguation for people and companies with common names?
Through entity context: Wikipedia disambiguation pages, Wikidata IDs, schema markup with sameAs links, and contextual cues in the prompt. Weak entity signals produce confusion or conflation.
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What is an AI hallucination and how does it affect brand reputation?
A hallucination is a confident AI statement with no factual basis: a fabricated lawsuit, an executive who never worked there, a product that does not exist. The remediation is source-layer, not prompt-level.
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