Data Cache is moving to Runtime Cache
By Steven Van ·
Pro projects get 8x the cache storage, but previously unbilled reads and writes now cost from $0.40 and $4.00 per million units.
Data Cache is leaving beta and merging into Runtime Cache. Vercel says Next.js fetch caching and unstable_cache will switch over on every version without code changes, and the optimization guide covers how to check usage before migrating.
Storage and pricing
On Pro, each project and environment gets its own Runtime Cache storage allocation, with 8x the space of Data Cache's previous team-wide pool. Enterprise projects get 10x their previous Data Cache storage.
Data Cache reads and writes that were previously unbilled are charged at Runtime Cache pricing once a team migrates. Rates start at $0.40 per million read units and $4.00 per million write units, and vary by region. Reads and writes are billed in 8 KB units, rounded up for each operation.
- Hobby: 1 million read units and 200,000 write units free each month across all projects.
- Pro: usage draws from the $20 monthly infrastructure credit, and anything beyond it is billed at regional rates.
- Enterprise: contact your account team for pricing.
Migration dates
Teams created on or after October 30, 2026 use Runtime Cache by default. For teams already on Data Cache:
- Hobby: migrated on November 29, 2026.
- Pro: Vercel will notify teams of their migration date and when billing changes take effect.
- Enterprise: the account team will send migration details.
Starting October 30, existing Hobby and Pro teams can opt in early from the team's CDN settings. Runtime Cache pricing applies as soon as a team opts in. Fetch and unstable_cache caching can also be disabled in CDN settings, which sends more requests to data sources but does not stop the migration.
Checking usage first
Before migrating, Data Cache usage can be reviewed in Observability. In the Runtime Cache dashboard, Vercel Agent can also be used to optimize reads and writes. Until a team migrates, the Observability page opens on Data Cache, so the Runtime Cache view has to be selected manually.