Expedia Group has added a travel planning tool to its mobile app using the artificial intelligence-backed large language model, ChatGPT. Expedia launched the beta version this week in its iOS app globally in English, with support for additional languages planned for the future. ChatGPT provides recommendations for trip itineraries including hotels, rentals, flights, experiences and ground transport pulled from Expedia Group’s travel data. Hotel results are saved in the app’s “trip board”, with users able to click through to look at pricing, reviews, photos and complete the booking. The models for the tool were written over several weeks to ensure guidance stayed aligned with Expedia’s brand ethics, said the group’s CTO.