OpenAI: Scaling PostgreSQL to the Next Level

Bohan Zhang, a member of OpenAI's Infrastructure team, recently shared the company's best practices with PostgreSQL at the PGConf.dev 2025 Global Developer Conference. The talk offers a glimpse into the database usage of one of the most prominent unicorn companies and demonstrates how PostgreSQL can scale gracefully under massive read loads. OpenAI utilizes managed databases on Azure, employing a classic PostgreSQL primary-replication architecture without sharding. This article covers the content of Zhang's talk, along with comments, and includes some more details about OpenAI's infrastructure.

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