Vercel Sandbox Benchmarks

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Sandbox Benchmarks

Last benchmarked July 11, 2026

Burst TTI

All sandboxes launched concurrently in a single burst.

100% success

Median

504ms

P95

638ms

P99

656ms

Median TTI Over Time

LinearLog

Iteration Distribution

Sequential TTI

Sandboxes launched one at a time, waiting for each to become interactive before starting the next.

100% success

Median

361ms

P95

527ms

P99

645ms

Median TTI Over Time

LinearLog

Iteration Distribution

Staggered TTI

Sandboxes launched with 200ms delays between each.

100% success

Median

353ms

P95

455ms

P99

532ms

Median TTI Over Time

LinearLog

Iteration Distribution

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