OpenAI says ChatGPT hits 1.2B weekly users, annualized revenue nears $70B

ChatGPT now reaches 1.2 billion people every week, OpenAI says

At DevDay, OpenAI disclosed that ChatGPT has more than 1.2 billion weekly active users. ChatGPT Work and Codex together top 35 million weekly actives, and 2.5 million businesses use its products.

Why it matters: It puts OpenAI's and Anthropic's revenue scale and IPO timing side by side, letting readers compare both firms' commercialization and compute spending pressure.