The profusion and popularity of free, open-source models has raised questions about how AI companies can actually profit from their products.

ChatGPT maker OpenAI says it has reached 400 million weekly active users for its artificial intelligence tools, making a rapid growth spurt since it reported 300 million in December. OpenAI told media outlets that it's doubled the number of paid enterprise users to 2 million since September,

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,

OpenAI is increasingly looking like a consumer company, telling CNBC that it now has 400 million weekly active users. Usage is still growing at a rapid

OpenAI reported 400 million weekly active users for ChatGPT, up from 300 million in December 2024. The company did not disclose the number of paid subscribers for ChatGPT Plus or Pro. The company now has 2 million paying business users,