OpenAI NewsArticle
Rapidly scaling online storage to serve over 1 billion ChatGPT users
This is infrastructure at real scale. ChatGPT's storage layer had to evolve as user base grew three orders of magnitude. The engineering is worth studying for anyone building towards billions of users, though the direct lessons apply mainly to cloud storage patterns, not model training or inference. For infrastructure builders: this is the kind of technical transparency that accelerates the field. For investors: one billion daily active users is a different market than anyone else is operating at.