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Flexsave for Google Cloud

DoiT Flexsave helps businesses manage and optimize their on-demand Google Cloud Platform (GCP) compute savings. Flexsave helps to ensure that on-demand compute workloads can be covered by resource commitments without commitment management or forecasting challenges.

Flexsave for GCP delivers the equivalent savings of a 1-year resource-based committed use discounts without the commitment! There's no reservation management needed, no costs to enable, and guaranteed savings on all covered workloads.


Flexsave monitors your resource utilization and adjust the mix of resource-based committed use discounts (CUDs) attached to your Google Cloud Billing account to maximize your potential savings.

Commitment types

Flexsave supports the following commitment types in all GCP regions:

  • General purpose E2, N2D, and Tau T2D commitments

  • General purpose N2 commitments (excluding sole-tenant nodes)

  • General purpose N1 commitments (excluding sole-tenant nodes, local SSD, and GPUs)

  • Memory-optimized M1 commitments

  • Compute-optimized C2, C2D commitments

Flexsave doesn't support the following commitment types:

GKE nodes

Flexsave provides CUDs for GKE nodes that use the Compute Engine pricing model, but not CUDs for GKE Autopilot Mode.

Sustained use discounts (SUDs)

Google Cloud Compute Engine automatically applies sustained use discounts (SUDs) on resources that are used for more than a fourth of a billing month and are not receiving any other discounts. The discount increases incrementally with your usage.

To take full advantage of Flexsave without losing the benefit of SUDs, we recommend that:

  • If you use general-purpose N1 and memory-optimized M1 machine types, activate Flexsave no later than the second week of the month.

  • If you use general-purpose N2/N2D and compute-optimized C2/C2D machine types, activate Flexsave no later than the third week of the month.

See also


See also

For platform-agnostic information, see Flexsave overview: FAQ.

Can I use Flexsave with discount sharing disabled?

Unfortunately, no. Flexsave requires you to enable committed use discount sharing.

See also

What changes should I expect in Google Cloud Console?

You should expect to see:

  • Commitment scope set to Billing account

  • Projects with 3-year committed use discounts and IDs like doitintl-fs-xxxxxx attached to your billing account

When enabling the billing account scope, the commitments will apply committed use discounts across all eligible usage (all projects) associated with this billing account.

See Flexsave projects/accounts for an example of how to view Flexsave projects/accounts in a Cloud Analytics report.

I just enabled Flexsave. Why do I immediately see charges for the CUDs you added to my account? Where are my credits?

When Flexsave adds Committed Use Discounts (CUDs) to your Google Billing Account and discount sharing is enabled, your billing will immediately start to report the associated commitment charges.

However, whenever you enable discount sharing, the changes will only take effect the following day at midnight Pacific Standard Time (PST). After this short delay, your billing will start to report the associated commitment credits.

See also

Why do I see discrepancies between charges and credits for my CUDs?

Google Cloud Billing experiences data latency for Committed Use Discounts (CUDs) when discount sharing is enabled:

Cloud Billing data for commitment charges, committed use discount credits, and sustained use discount credits can be delayed for up to one-and-a-half days. This difference in timing can cause your most recent costs from the current and previous day to appear higher than expected because the credits to offset those costs are not yet attributed.

See also

How soon after enabling Flexsave should I expect to see the savings?

You should expect to see savings within 72 hours.

Why aren't my savings showing up?

Savings always show with a three-day delay. For example, if today was the 23rd day of the month, your Savings will be accurate to the 20th. At the beginning of a new month, the Savings will show on the 4th day of the month.

What is the CUD analysis report?

The CUD analysis report is a feature offered by Google Cloud Billing that shows the coverage rate for all the Google Compute Engine (GCE) resources eligible for committed use discounts. A value of 0% means that a specific resource has no coverage at all, and a value of 100% means the resource is fully covered.

See also