In July 2025, Chatgpt had more than 700 million weekly active usersor near 10 % of the world’s adult population, cusers exchanged more than 2.5 billion messages every daythe equivalent of 29,000 interactions per second. This is revealed by a study published by the National Bureau of Economic Research (Nber) which documents with precision which uses Chatgpt, for what to do, and how these uses evolve.
So near 46 % of messages come from users aged 18 to 25. Their interactions, mainly non -professional (only 23 % linked to work), concern education, experimentation or the search for immediate information. The study authors note that “almost half of all the messages sent by adults come from users under 26”. This generation develops a conversational consultation reflex, comparable to that which the search engines had established twenty years earlier.
Conversely, superior graduates and qualified professions use Chatgpt more for professional tasks. 42 % of their uses concern writingwhether internal notes, commercial documents or syntheses. In the managerial and business professions, this part climbs to 52 %against 37 % of technical requests in computer trades. The study notes “a striking homogeneity of uses at work: obtaining, interpreting and documenting information, then making decisions”. The researchers add: “The most frequent activity, all professions combined, is Make decisions and solve problems. »»
This convergence confirms the place of conversational AI as Transversal standard of cognitive productivity. For marketing directions, two implications are emerging, namely adapting the content and customer journeys to the expectations of a generation which forms via AI, and align B2B offers on decision -makers who already integrate it into their daily processes.
The study How people use chatgptled by Aaron Chatterji (Duke University) and David Demin (Harvard), relies on more thanone million anonymized conversations Coming from consumer plans (Free, Plus, Pro). She underlines that the share of non -professional uses has gone from 53 % in June 2024 at 73 % in June 2025and that growth is particularly strong in intermediate income countries, where adoption increases faster than in advanced economies. According to the authors, “the boom in chatgpt in low and intermediate income countries is one of the significant facts of the past year”.
