Booking.com keeps buying the only seat under the AI's answer
Fifty thousand US prompts returned one sponsored offer under the answer, never two. In travel, Booking.com held it 62.57% of the time.
by Markus Busch
Under the answer. SE Ranking ran 50,006 commercial prompts through ChatGPT across twenty categories in the United States on July 23 and published what came back on August 10. Ads appeared on about a quarter of them. Every ad in the set sat below the generated answer. Every one was a single sponsored offer with nothing competing beside it.
In the travel category, Booking.com held 62.57% of them. SE Ranking sells search visibility tools, so read the number with that in hand — the method is disclosed, which is more than the rest of this genre manages.
One seat, not a page. A Google results page stacks up to four ads, and a hotel buying a position there is buying a share of a crowded shelf. Under a ChatGPT answer there was one line, and across fifty thousand prompts a second one never appeared. That is not a smaller version of paid search. It is a different object: the slot does not divide. Whoever holds it holds all of it, for that conversation, and everyone else is not further down the page. They are absent.
One caution on that. OpenAI's help pages say ads appear below responses and publish no limit on how many. A single offer per answer is what the study observed in July, not a rule the platform has written down.
What it means for hotels. A guest types where she should stay in the Dolomites. She reads the answer. Underneath it, when anything is there at all, sits one sponsored line, and in travel that line was Booking.com about six times in ten. There is no bidding your way to second place in a seat that does not divide. Which leaves one position in that exchange, the same one it has always left: the answer itself, above the line, the part that was never for sale.
The limits. The United States, one day, five weeks before OpenAI opened self-service buying across Europe on August 31. It describes a market European hotels could not yet buy into. "Travel" is not "hotels" either — the study does not separate accommodation prompts from flights or tours, so six in ten of travel ads is not six in ten of hotel ads. And the seat is usually empty: an ad came back on roughly one travel question in seven, against half of them on Google's AI Mode. Thin, and uncontested.
Marriott is finding out what the seat costs. In July, Booking.com was already in it.
Read also: Marriott says it already wins the AI answer. It's buying ads there anyway. · Your AI recommendation is not for sale. But a resort like yours can earn it.
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