Microsoft CEO Satya Nadella explains how Bing with AI is better than Google - The Verge

First of all, you have to remember the relationship with OpenAI and our cooperation with OpenAI has many facets. The most important thing is what we've done over the last four years to actually build out the core infrastructure on which OpenAI is built: these large models, the training infrastructure -- and the infrastructure doesn't look like regular cloud infrastructure. We had to evolve Azure to have specialized AI infrastructure on which OpenAI is built. And by the way, Inception and Character.ai There will be many others who will use Azure infrastructure.