OpenAI leverages Ory to support over 400 million weekly active users (now up to 800M)
Abstract
As one of the fastest-growing apps in history, ChatGPT required an identity platform that could scale on demand. Their core challenge was supporting exponential growth without sacrificing security, performance, or the speed of innovation. Legacy CIAM vendors couldn't provide the control or flexibility OpenAI needed. Discover the modern, open-source-driven solution they implemented to own their identity stack and build without compromise. Learn how Ory’s identity and access management platform helped OpenAI move beyond the constraints of traditional vendors to build a resilient, observable, and highly-scalable identity framework.
By December when we really started moving traffic on our internal system, we were up around 300 million actives. Now, before we've even completed, we've already added another 100 million. (Up to 800M weekly actives as of Oct 2025)
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