The Red Hat OpenShift Service on AWS (ROSA) with hosted control planes (HCP) deployment model is generally available. Under the classic ROSA deployment model, AWS infrastructure required to run the ROSA control plane is hosted on your AWS account. Now, you can create ROSA clusters with the control plane hosted and managed on a service account. Like ROSA classic, ROSA with HCP clusters incur on-demand service fees per worker node vCPU. Additionally, ROSA with HCP clusters incur an on-demand service fee per cluster hour. For service fee discounts, you can optionally purchase upfront ROSA with HCP contracts from the ROSA console.
Source:: Amazon AWS