Google Anthos is a managed service that offers a hybrid cloud infrastructure, allowing developers to access multiple clouds, including Google Cloud, AWS, and on-premises environments. It provides a single cluster with Kubernetes clusters grouped by configuration and policy, but requires continuous synchronization of the clusters across different cloud environments. In contrast, CAST AI offers a more advanced multi-cloud approach, providing a unified logical Kubernetes cluster connected across multiple cloud services through a virtual private network. CAST AI abstracts away differences between compute, network, ingress, load balancing, and storage, making it easier to manage and optimize costs. The solution uses out-of-the-box auto-scalers and cost optimization engines to ensure the best possible compute instances are used for deployed workloads.