Final answer:
The cost of an Azure service in private preview typically increases when the service becomes generally available.
Step-by-step explanation:
The statement is False.
When an Azure service is in private preview, it is in the testing phase and available only to a limited group of users. In this phase, the cost might be lower or even free for testing purposes. However, once the service becomes generally available to the public, the cost usually increases because it is fully released and accessible to a wider audience.
Therefore, the cost of an Azure service typically increases when the service transitions from private preview to generally available.