EIPs are free when attached. And public addressable instances in AWS do not need an attached EIP, that's only if you want the public IP to be static and to be a

EIPs are free when attached. And public addressable instances in AWS do not need an attached EIP, that's only if you want the public IP to be static and to be able to replace the instance without updating DNS records. So both are free compared to GCP's paid.