Scaling PostgreSQL to power 800 million ChatGPT users

OpenAI Blog · 5 months ago

OpenAI scaled PostgreSQL to handle the database demands of supporting 800 million ChatGPT users through replicas, caching, rate limiting, and workload isolation techniques. The system processes millions of queries per second across their infrastructure. This approach allows OpenAI to maintain database performance without replacing PostgreSQL entirely, demonstrating how traditional relational databases can support massive-scale applications.