OpenAI's paying business users also crossed 2 million in February, more than doubling from its last update in September.

DeepSeek may've stolen some of ChatGPT's thunder, but OpenAI's chief operating officer says ChatGPT is growing due to word of mouth.

ChatGPT has surpassed 400 million weekly active users. "We feel very fortunate to serve 5 percent of the world every week," OpenAI COO Brad Lightcap said on X about the new audience stat. This figure is twice the weekly active user count reported by the company in August 2024,