OpenAI details scaling to 70M requests/sec over 500PB across nearly 40 regions

AxSaucedo · x · 2026-09-16

OpenAI published a two-part infrastructure series explaining how its serving stack supports ChatGPT at scale: 70 million requests per second, over 500 petabytes, across nearly 40 regions, serving more than a billion people per week. The posts detail the engineering behind its globally distributed inference infrastructure.

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