ChatGPT app hits 1 billion monthly active users in record time, data shows • Reuters (opens in new tab)

Harshita Mary Varghese: OpenAI's ChatGPT has crossed 1 billion global monthly active app users, becoming the ​fastest app ever to reach the milestone, ‌according to estimates from market intelligence firm Sensor Tower. The record comes amid growing competition between Anthropic ​and OpenAI for dominance in the rapidly ​expanding artificial intelligence market. [Sensor Tower] said US ChatGPT users ​who installed Anthropic's Claude app in the ​first quarter of 2026 spent 5% less time on ‌ChatGP...