Private AI Is Not Model Hosting: A Reference Architecture for Sovereignty, Identity, GPUs, and Operations on VCF 9.1

This article discusses the distinction between model hosting and private AI, arguing that true private AI requires a comprehensive operating model beyond simply running models on-premises. It presents a reference architecture for VMware Cloud Foundation 9.1, focusing on four design lenses: data sovereignty, identity and access control, GPU architecture, and operational governance. The piece emphasizes treating AI as a platform service integrated with infrastructure, security, networking, and lifecycle management, rather than a simple deployment task. It targets IT professionals and architects building production AI platforms.