Everyone is aware that cloud computing costs are based on usage. Everyone is also aware that making reservations or commitments can lower expenses. But which dedication is right for you? To help you discover your benefits, I will cover the two most important discounts provided by the Google Cloud Platform in this blog post – Sustained and Committed Use Discounts. 

Committed Use Discount

Committed Use Discounts (CUDs) are a cost-saving option to consider if you run your applications on virtual machines and a Google engine like Kubernetes or Compute Engine. You can use VMs for a significant discount by purchasing a Committed Use Discount.

A usage commitment for discounted Compute Engine resources is known as a Committed Use Discount. Your team agrees to pay for a specific quantity of usage of those resources for one or three years in exchange for premium savings. Google can predict future demand better when you sign up for a CUD. They are able to manage their inventory more effectively as a result, and you end up saving a tonne of cash.

  • It is simple to configure and doesn’t require any upfront cost.
  • Ideal fo workloads with predictable requirements.
  • The commitment term is either 1 year or 3 years.
  • You can purchase a committed use contract for a single project or purchase multiple contracts share across many projects by enabling Shared Discounts.

Sustained Use Discount

Sustained Use Discounts are automatic discounts provided to GCP users for Compute Engine resources that are used for a considerable portion of the billing month, as opposed to Committed Use Discounts, which are discount options purchased for a specific term-length.

GCP will give you a maximum 30% net discount on that consumption if you run a specific virtual machine for a prolonged period of time each month (depending on the instance and other qualifying factors). Understanding your eligibility for these savings is not always straightforward because sustained use discounts are applied differently based on the machine type and rates can vary by location.

  • This discount is applied on incremental use after you reach a certain usage.
  • Does not apply to –
    • Virtual Machine created using App Engine. 
    • E2 and A2 machine types.


Don’t forget that commit contracts are entirely distinct from CUDs. A commitment to spend X over Y years in exchange for a discount of Z% under a commit contract with Google Cloud is merely a financial instrument.

Businesses with predictable growing spending, and especially those moving workloads to Google Cloud Platform from another provider, can negotiate attractive discounts and even receive discounts that are tailored to your spending patterns.

Thinking on the scenario from the standpoint of the cloud provider is beneficial. Cloud usage is frequently billed on an as-needed and monthly basis. That contributes to the historically low margin nature of data centre operations by making financial forecasting a nightmare for some businesses. The expectations that have been set for business IT purchases over the past 30 years are another aspect in this. Enterprise IT requires long-term, large-scale purchases, so it demands a significant discount for the promised volume.

The discounts offered by a commit contract also apply to all of your purchases made through Google Cloud Platform, making them advantageous for more advanced application architectures that use serverless technologies for their databases and applications.


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