## GCP Cloud Bigtable — commitment brief

**Data sourced**: March 2026. Verify current figures at the [Google Cloud Pricing Calculator](https://cloud.google.com/products/calculator).

### Coverage summary

Cloud Bigtable supports spend-based committed use discounts (CUDs) that apply to Bigtable node compute capacity across all regions and projects within a billing account. A 1-yr commitment delivers a 20% discount and a 3-yr commitment delivers a 40% discount over on-demand pricing. The CUD applies flexibly to all eligible Bigtable node usage regardless of the specific instance or cluster location, making it well-suited for organizations with Bigtable footprints spread across multiple regions.

**What is covered**: Bigtable node compute capacity measured in nodes — both SSD and HDD node types — across all instances and clusters in any region within the billing account.

**What is not covered**: Bigtable storage costs (SSD and HDD capacity beyond what nodes provide), backup storage, and network data transfer charges.

### CUD types

Cloud Bigtable offers spend-based CUDs only. You commit to a minimum hourly dollar spend on Bigtable compute capacity. The commitment automatically applies across all Bigtable clusters in any region within the billing account, providing broad flexibility. Both 1-yr (20% off) and 3-yr (40% off) terms are available.

### Machine type / SKU coverage

| SKU               | Spend CUD | 1-yr discount | 3-yr discount | Notes                                             |
|-------------------|-----------|---------------|---------------|---------------------------------------------------|
| SSD nodes         | ✅ Yes    | ~20%         | ~40%         | Node compute capacity covered; storage is separate |
| HDD nodes         | ✅ Yes    | ~20%         | ~40%         | Node compute capacity covered; storage is separate |
| SSD storage       | ❌ No     | —             | —             | Storage costs not covered by CUD                   |
| HDD storage       | ❌ No     | —             | —             | Storage costs not covered by CUD                   |
| Backup storage    | ❌ No     | —             | —             | Not covered                                       |
| Network data transfer | ❌ No | —             | —             | Not covered                                       |

## Regional availability

Available in all commercial GCP regions. Cloud Bigtable spend-based CUDs apply across all eligible Bigtable node usage regardless of instance or cluster location within the billing account — no per-region purchase is required, making CUD coverage fully portable as your Bigtable footprint grows or shifts across regions.

**⚠️ CUD availability varies by machine type and region. Always verify at [GCP regions and zones](https://cloud.google.com/compute/docs/regions-zones) before purchasing.**

### Archera

Google Cloud Bigtable is within Archera's commitment management scope. Archera can automate spend-based CUD purchase for Cloud Bigtable, monitor node utilization across all clusters and regions, and wrap commitments in a GRI/GSP — eliminating downside risk on over-commitment while preserving the full 20–40% discount.

**Sources**

- [Committed use discounts — Cloud Bigtable](https://cloud.google.com/bigtable/docs/cuds)
- [Announcing Bigtable committed use discounts (blog)](https://cloud.google.com/blog/products/databases/announcing-bigtable-committed-use-discounts)
- [Spend-based committed use discounts overview](https://cloud.google.com/docs/cuds-multiprice)

**⚠️ Discount percentages are approximate. Always verify with the [Google Cloud Pricing Calculator](https://cloud.google.com/products/calculator).**