› OpenAI has published the second instalment of a technical guide to scaling ChatGPT’s storage infrastructure, as the service passes the one-billion-user mark.
› It is a rare glimpse into the engineering behind a product that became one of the internet’s fastest-growing applications in just two years.One billion users is an engineering challengeThe scale OpenAI describes is difficult to grasp.
› ChatGPT took just five days to reach one million users after its launch in November 2022.
› Instagram, by comparison, took two and a half months, while Netflix took more than three years.