---
type: "Evidence Item"
title: "Scaling PostgreSQL to power 800 million ChatGPT users"
description: "An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting, and workload isolation."
resource: "https://openai.com/index/scaling-postgresql"
tags: ["appendix-iii", "vendor", "openai"]
timestamp: "2026-01-22"
category: "vendor"
publisher: "OpenAI"
cope_score: 68
confidence: 0.9
---

# Scaling PostgreSQL to power 800 million ChatGPT users

# Claim

An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting, and workload isolation.

# Relevance

Appendix III, section two: vendor threshold and platform capability evidence

# Oracle Verdict

This is a lower-to-mid strength vendor signal for the capability register. It does not prove displacement on its own, but it records another platform step that can later show up as workflow automation, procurement change, or organisational dependency.

# Metadata

* Publisher: OpenAI
* Category: vendor
* Sector: Enterprise operations
* Capability: Vendor platform capability signal
* Cope score: 68
* Confidence: 0.9

# Related Concepts

* [Live evidence index](index.md)
* [Thesis](../thesis.md)

# Citations

[1] [Scaling PostgreSQL to power 800 million ChatGPT users](https://openai.com/index/scaling-postgresql)