OpenAI has more than doubled its annualized revenue to $3.4 billion in the past six months or so, OpenAI CEO Sam Altman has told staff, a sign that growth in the ChatGPT developer’s business is accelerating despite intensifying competition.Annualized revenue—a measure of the past month’s revenue multiplied by 12—was $1.6 billion in late 2023, The Information previously reported, and about $1 billion last summer. That rapid growth reflects how quickly businesses and individuals have incorporated ...