OpenAI has partnered with researchers from Duke University and Harvard University and published a new study titled “How People Use ChatGPT.” It gives insights into how the chatbot has grown and what people do with it.
The paper tracks ChatGPT’s rise from its November 2022 launch to July 2025, when the service reached 700 million weekly active users, which is about 10% of the world’s adult population, sending 2.5 billion messages a day, or roughly 29,000 messages every second. According to the authors of the study, no consumer technology has spread this quickly on a global scale.
