Definition
Google Cloud Committed Use Discount (CUD): A 1 or 3 year commitment to Google Cloud compute resources where the buyer commits to a baseline spend or resource quantity in exchange for tiered discounts. Spend based CUDs commit to dollar spend on flexible compute and apply at the project or organization level. Resource based CUDs commit to specific machine types in a specific region with discount tiers up to 70 percent for 3 year all upfront commits.
CUD exists as the Google Cloud workhorse commitment vehicle. Google Cloud sales teams compensate against committed cloud spend while enterprise buyers need discount predictability as workloads scale. The commit converts pay as you go pricing into either spend tier pricing or resource tier pricing. The benchmark cohort of 142 CUD commits across the GCP install base shows the two structures produce different optimization patterns.
The spend based versus resource based decision is the structural choice that determines CUD value. Spend based CUDs deliver 25 to 28 percent flat discount on Compute Engine, Cloud SQL, and GKE compute regardless of machine type or region. Resource based CUDs deliver 37 percent discount for 1 year and 55 to 70 percent discount for 3 year commits on specific machine families and regions, with all upfront payment options reaching the top tier. Buyers with stable workload mix typically capture more value with resource based CUDs. Buyers with workload churn or planned migrations typically capture more value with spend based CUDs.
Benchmark your CUD structure
The Google Cloud CUD benchmark covers 142 commits across spend based and resource based structures. Discount tiers, region selection, and the renewal renegotiation playbook.
How CUD stacks with Google Cloud commit programs
Google Cloud carries three commitment mechanics that buyers often conflate. CUDs apply to compute resources at the project or organization level. Google Cloud Marketplace Committed Spend, similar to AWS EDP, applies at the broader account level and opens Marketplace burn down. Sustained Use Discounts apply automatically at runtime for instances running more than 25 percent of the month, with no commitment required, and provide up to 30 percent discount on Compute Engine. The three programs stack so buyers can apply CUDs to specific machine types, account level commitment to broader spend, and Sustained Use Discounts to ad hoc workloads.
For applied GCP negotiation see the Google Cloud Platform pricing guide, the GCP discount negotiation guide, and the Google Cloud pricing and negotiation hub. The MACC definition covers the comparable Azure mechanic and the AWS EDP definition covers the AWS equivalent. The glossary hub carries the broader procurement vocabulary.
For category benchmarks the cloud infrastructure pricing benchmark compares hyperscalers head to head, and the cloud infrastructure benchmark hub carries the broader discount data.
CUD renewal economics
CUD commits expire at term end and convert any uncommitted resources back to pay as you go pricing immediately, which produces a step change cost increase if renewal is not lined up. Buyers should run CUD renewal analysis 90 to 120 days before expiration with usage data from the prior 6 months as the input. The renewal can reset to a different commitment size based on observed usage. Workload migrations and downsizing during the term are the most common drivers of CUD undercommit at renewal.
Frequently asked questions
What does CUD stand for in Google Cloud?
CUD stands for Committed Use Discount. A Google Cloud CUD is a 1 or 3 year commitment to Compute Engine resources or to dollar spend on flexible compute, in exchange for tiered discount up to 70 percent below pay as you go pricing.
What is the maximum CUD discount?
Maximum CUD discount is 70 percent for 3 year resource based CUDs with all upfront payment on select machine families. The top tier requires a specific machine type and region commitment. Spend based CUDs cap at 28 percent flat for 3 year commits.
What is the difference between spend based and resource based CUD?
Spend based CUDs commit to dollar spend on flexible compute and apply across machine types and regions, delivering 25 to 28 percent flat discount. Resource based CUDs commit to specific machine types in specific regions, delivering 37 to 70 percent discount depending on term and payment terms. The choice depends on workload stability.
Can CUDs apply to GKE or Cloud SQL?
Yes. Spend based CUDs apply to Compute Engine, GKE Autopilot compute, Cloud SQL compute, and Cloud Run on demand. Resource based CUDs apply specifically to Compute Engine machine types. Cloud SQL and other managed services have their own CUD product variants.
What happens to CUDs at expiration?
CUD commits convert to pay as you go pricing immediately at term end. Buyers should plan renewal 90 to 120 days before expiration using prior 6 month usage data. CUD renewals can resize commitment based on observed workload patterns.
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