Americans’ use of artificial intelligence (AI) is slowly expanding: According to a recent Pew Research survey, nearly one-quarter of U.S. adults (23 percent) say they’ve tried the AI chatbot ChatGPT.

The company, best known as the creator of the chatbot ChatGPT, said that the new office would open in the coming months. As one reason for its expansion, OpenAI cited the fact that, in Europe, Germany ...