https://www.infoq.com InfoQ Cosmos feed https://www.infoq.com/news/2026/02/openai-runs-chatgpt-postgres/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Cosmos <img src="https://www.infoq.com/styles/static/images/logo/logo_bigger.jpg"/><p>OpenAI described how it scaled PostgreSQL to support ChatGPT and its API platform, handling millions of queries per second for hundreds of millions of users. By running a single-primary PostgreSQL deployment on Azure with nearly 50 read replicas, optimizing query patterns, and offloading write-heavy workloads to sharded systems, OpenAI maintained low-latency reads while managing write pressure.</p> <i>By Leela Kumili</i> Scaling SQL Database Replication Caching Cosmos Postgres OpenAI SQL Azure Sharding ChatGPT Azure Architecture & Design Development AI, ML & Data Engineering news Thu, 12 Feb 2026 15:00:00 GMT https://www.infoq.com/news/2026/02/openai-runs-chatgpt-postgres/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Cosmos Leela Kumili 2026-02-12T15:00:00Z /news/2026/02/openai-runs-chatgpt-postgres/en