ChatGPT has doubled its weekly active users to 200 million

ChatGPT now has 200 million weekly active users, according to OpenAI. That represents a doubling of the weekly audience of 100 million the company announced last November. A representative from the company told Engadget that API usage has also doubled since the July release of GPT-4o mini. User numbers aren't the only big growth OpenAI has seen over the past year. CEO Sam Altman reportedly told employees this summer that the company's annualized revenue -- which takes a monthly revenue figure and stretches it out over a whole year -- had reached 3.4 billion, up from 1.6 billion at the end of 2023.