The combination of two all-beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun, makes Big Mac the best-selling sandwich of McDonald’s in Brazil, and the most iconic in the world. To show this preference in global scale, the brand asked the “opinion” of one of the most popular artificial intelligence tools today: ChatGPT1. Guided by internet existing data, ChatGPT is an artificial intelligence that simulates a conversation between human beings, answering questions in detail by taking millions of online data into consideration. And when enquired about the most iconic sandwich in the world, the result was: Big Mac. Big Mac is the only McDonald’s sandwich sold all across the globe, offering the same recipe since the year it was launched on the menu. It is an iconic sandwich that has won over consumers’ palate and keeps on delivering a tasty experience coupled with unique and memorable moments to our clients. No wonder it’s IA’s “favorite” sandwich too”, says Sérgio Eleutério, Marketing Director at McDonald’s Brasil. Big Mac, just as all McDonald’s beef sandwiches, is prepared with all-beef patties, with no additives or preservatives, and seasoned with a slight touch of salt and pepper directly on the hotplates. The lettuce, onion and pickles contained in the products are delivered regularly in the restaurants, by certified suppliers, making sure the company’s standard quality is met. The special sauce, on its turn, is so important that its ingredients are globally controlled, as only few suppliers are certified, ensuring the icon’s high quality and unmatched taste.