The pricing options for Microsoft Azure are:
1. Pay-As-You-Go: This is the most popular pricing option and allows you to pay for the services you use, as you use them. The cost is based on the amount of resources you consume. For example, you can pay for Virtual Machines (VMs) by the hour and for storage by the gigabyte.
2. Subscription: This option allows you to purchase a subscription for a certain period of time and get a discounted rate. You can choose from monthly or annual subscriptions, depending on your needs. For example, you can purchase an Azure Dev/Test subscription for 12 months and get a discounted rate.
3. Reserved Instances: This pricing option allows you to purchase a reserved instance for a one- or three-year term and get a discounted rate. For example, you can purchase an Azure SQL Database reserved instance for a three-year term and get a discounted rate.
4. Hybrid Benefit: This option allows you to use your existing on-premises Windows Server and/or SQL Server licenses to get a discounted rate on Azure services. For example, you can use your existing Windows Server license to get a discounted rate on Azure Virtual Machines.