AI BriefingVercel Sandbox snapshot creation speeds up 10x to under 0.4 seconds
·2026.11.09 09:00
Key point
Snapshot restore speed also improved by 50% to 250ms at p50 through a more efficient VHS format that enables parallel operations.
Details
- Vercel Sandbox snapshot creation is up to 10x faster, with median time dropping from 4.4 seconds to under 0.4 seconds
- Snapshot restore speed improved by 50% at p50, decreasing from 500ms to 250ms
- The Vercel Hive Snapshot (VHS) format now indexes data more efficiently, allowing more read and write operations to run in parallel
- Persistent sandboxes automatically snapshot when a session stops and resume from the latest snapshot, requiring no configuration for new snapshots
Technical Implementation
- VHS re-uses frames within the format to write and restore snapshots
- Base image restoration now occurs in parallel with user data, leading to faster overall operations
- Existing snapshots retain the previous format, while the new parallel processing applies to all new snapshots
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