Vercel Sandbox Benchmarks

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Sandbox Benchmarks

Last benchmarked April 12, 2026

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Sequential TTI

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

100% success

Median

0.38s

P95

0.46s

P99

0.50s

Median TTI Over Time

Iteration Distribution

Burst TTI

All sandboxes launched concurrently in a single burst.

100% success

Median

0.66s

P95

0.87s

P99

0.97s

Median TTI Over Time

Iteration Distribution

Staggered TTI

Sandboxes launched with 200ms delays between each.

100% success

Median

0.38s

P95

0.49s

P99

0.57s

Median TTI Over Time

Iteration Distribution

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