ChatGPT maker OpenAI says more than 400 million people a week are now actively using its artificial intelligence tools, a jump from the 300 million it reported this past December. OpenAI touted the figure this week, also telling media outlets that it's doubled its number of paid enterprise users to 2 million since September, and that its developer traffic has also doubled in the last six months. The news may surprise people who expected the rise of China's DeepSeek AI...
