This IDC Market Perspective features AI Plane (AIP), an interoperable framework to select the right infrastructure stack to power AI workloads. As-a-service AI Plane is an implementation based on as-a-service offerings provided by public cloud service providers. IDC recommends enterprises to leverage the AIP framework for selecting an appropriate infrastructure stack to power AI workloads based on the availability of AI data set, use cases, in-house expertise, and appetite for infrastructure investment. This IDC Market Presentation introduces representative stacks of as-a-service AI Plane based on three major clouds service providers. IDC further recommends building an interoperable as-a-service AI Plane by judiciously selecting infrastructure abstractions, and open source-based data and AI/ ML life-cycle management tools to implement interoperability between multiple cloud service providers.