OpenAI is a big marketing piece for Azure. They go to every enterprise and tell them OpenAI uses Azure Cloud. Azure AI infra powers the biggest AI company on the planet. Their custom home built chips are designed with Open AI scientists. It is battle hardened. If anyone sues you for the data, our army of lawyers will fight for you.
No enterprise employee gets fired for using Microsoft.
It is a power play to pull enterprises away from AWS, and suffocating GCP.