AI summaries of Tripadvisor hotel reviews downplay serious complaints, investigation finds

Rory Boland, the editor of Which? Travel, said users should ‘scroll past these summaries and look at guest reviews’. Photograph: Roy Johnson/Alamy View image in fullscreen Rory Boland, the editor of Which? Travel, said users should ‘scroll past these summaries and look at guest reviews’. Photograph: Roy Johnson/Alamy AI summaries of Tripadvisor hotel reviews downplay serious complaints, investigation finds AI-generated overview found to gloss over allegations of sexual harassment and describes hotel being sued over hygiene as ‘spotless’ A hotel being sued for mass food poisonings was described as “spotless” and a resort where guests complained of sexual harassment by staff was praised for “friendly” service by an AI intended to summarise millions of Tripadvisor reviews. The overviews of customer feedback downplayed serious complaints, ranging from the stench of mould to a lack of mains water, according to an investigation by the consumer campaign organisation Which? The AI-generated reviews appear on the travel website’s hotel webpages to help holidaymakers decide where to book. In one case, the AI summary described the Riu Palace Santa Maria in Cape Verde as popular, with spacious rooms, “diverse restaurants” that earn “rave reviews” and spotless cleanliness. Yet customers reported being served raw chicken, shared photographs of flies and birds on the buffet and reported “dead little roasted mice by the sitting area”. A guest whose whole family became ill wrote: “This place will destroy holidays.” The hotel chain is being sued in the high court by hundreds of guests alleging illnesses linked to poor hygiene standards and food safety failings. The AI-generated review for the Cape Verde hotel is no longer available. Its operator, RIU Hotels & Resorts, said: “We operate with the highest standards of professionalism and service, placing hygienic-sanitary safety as our top priority.” View image in fullscreen Tripadvisor said it was monitoring and refining its AI tool but it was ‘confident these features are delivering exactly what they were designed to do’. Photograph: Jakub Porzycki/NurPhoto/Rex/Shutterstock The AI praised a separate Dominican Republic hotel for its “abundant” amenities, with only a nod to “inconsistent” cleanliness and “maintenance issues”. But guests reported showering with bottled water because the mains taps ran dry and that every other person in a large wedding party became sick. Meanwhile, guests of a hotel in Turkey wrote that they felt unsafe due to repeated sexual harassment from male hotel staff, including requests to connect on social media, but the AI summary described the service as “friendly” and merely said “lapses [in service] noted by a few”, Which? found. Tripadvisor said it was monitoring and refining its AI tool and was “looking into the examples where reviews did not match the intended property”. But it said it was “confident these features are delivering exactly what they were designed to do: help travellers qu