https://techcrunch.com/2023/11/06/openais-chatgpt-now-has-100-million-weekly-active-users/ > ChatGPT now has 100 million weekly active users, OpenAI CEO Sam Altman announced on Monday at the company’s first developer conference in San Francisco. The service released nearly a year ago and garnered an estimated 100 million monthly users within just two months of launching and set a record for fastest-growing user base. > Altman also shared today that over two million developers use the platform, including more than 92 percent of Fortune 500 companies.