Vercel Sandbox is now available in all regions

Vercel Sandbox previously ran in only four regions, limiting where teams could deploy isolated workloads. The expansion to all 20 regions removes this constraint, letting engineers place sandboxes near databases, storage, or APIs to reduce round-trip latency. This is particularly useful for latency-sensitive applications or those with strict data residency requirements, as teams can now enforce geographic boundaries for sandbox execution.

The addition of failover regions introduces resilience for sandboxed workloads. If a sandbox cannot be created in the primary region, Vercel will attempt to deploy it in each configured failover region in sequence. This feature is limited to Pro and Enterprise plans, meaning smaller teams or free-tier users must rely on the default region or manual intervention. Failover regions also support compliance use cases, as teams can restrict both primary and failover regions to approved jurisdictions.

Region selection is exposed through multiple interfaces: project settings, the SDK, and the CLI. The SDK and CLI allow per-sandbox overrides of the project default, giving fine-grained control over where individual workloads run. However, existing sandboxes remain in their original regions unless manually migrated, which may require downtime or reconfiguration. Teams using the SDK or CLI must update to the latest version to access newly supported regions, adding a small operational step before adoption.

While broader regional coverage improves flexibility, it also introduces cost variability. Active CPU and provisioned memory rates differ by region, so teams distributing workloads across multiple regions may see uneven costs. This could complicate budgeting for projects with dynamic or unpredictable sandbox usage. Additionally, the default region (iad1) remains unchanged, so teams not explicitly setting a region will continue to incur costs based on that region’s pricing.