Revised 9 September 2026 This study was independently reviewed after publication. Two citation figures were wrong, one finding has been withdrawn, and several claims have been narrowed to match the evidence. The full list of changes is in the Corrections section at the end, and all 86,645 …
Case Studies
What Actually Predicts a ChatGPT Ad? Not Topic — Whether You’re Asking for a Recommendation
What actually predicts a ChatGPT ad? Whether you are asking for information—or for a business recommendation In our late-August test, “How do I file for divorce?” produced an ad about one time in five. “I need a lawyer, who should I call?” produced one about three times in five. The topic is the …