They also say "Non-API products may be served on any cloud provider.". I wonder what products they are thinking about. If I sell you a EC2 image with GPT-5 on it, is that a API?

My assumption is that they mean PaaS model hosting (so azure's ai service, bedrock, vertex), but I don't know what other product OpenAI is thinking about selling via a cloud provider unless it's training tooling or something.