CreateOS vs TenkiSandbox Benchmark Comparison

CreateOS
Faster in 2 of 2
vs
Tenki
Faster in 0 of 2

CreateOS was faster in both shared sandbox benchmarks.

Shared benchmarks
2
Last run
October 30, 2026
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Scorecard

Median of each benchmark's primary metric; lower is better. Medians within 5% count as roughly even, and a benchmark gets no speed verdict when either provider completed fewer than 50% of runs.

BenchmarkCreateOSTenkiResultRatio
Burst TTI
Time to interactive · Run October 30, 2026
136ms
100% success
2.10s
100% success
CreateOS faster
15.5x
DAX
Total workload time · Run October 30, 2026
53.21s
100% success
60.78s
100% success
CreateOS faster
1.14x

Burst TTI

Run October 30, 2026

Time from sandbox creation to the first successful command, with 100 sandboxes launched at the same time.

Time to interactive

CreateOS

100% success
Median
136ms
P95
176ms
P99
178ms
CreateOS Burst TTI results →

Tenki

100% success
Median
2.10s
P95
2.18s
P99
2.18s
Tenki Burst TTI results →

CreateOS had a 15.5x lower median time to interactive (136ms vs 2.10s for Tenki).

Median time to interactive over time

18 runs from July 24, 2026 to October 30, 2026.

CreateOSTenki
View the full Burst TTI leaderboard →

DAX

Run October 30, 2026

A real developer workload: install system packages, download Bun, clone the opencode repo, then run bun install and bun typecheck.

Total workload time

CreateOS

100% success
Median
53.21s
P95
53.21s
P99
53.21s
CreateOS DAX results →

Tenki

100% success
Median
60.78s
P95
60.78s
P99
60.78s
Tenki DAX results →

CreateOS had a 1.14x lower median total workload time (53.21s vs 60.78s for Tenki).

Median total workload time over time

17 runs from July 31, 2026 to October 30, 2026.

CreateOSTenki
View the full DAX leaderboard →

Cost per DAX run

Each provider's DAX median total workload time (run October 30, 2026) multiplied by its published rate at the 8 vCPU / 16 GiB benchmark spec. Workload time excludes sandbox create and destroy, and subscription floors and included credits are not modeled.

CreateOS

Per-second wall clock
$0.0098per run
53.21s median at $0.6624/hr

$0.0504/vCPU-hr + $0.0162/GiB-hr — parity with E2B. No egress fees.

Source pricing page

Tenki

Per-second wall clock
$0.011per run
60.78s median at $0.6624/hr

$0.000014/vCPU-s + $0.0000045/GiB-s; usage draws from monthly workspace credits first.

Source pricing page
Compare sandbox costs across all providers →

Methodology

  • One workload, every provider. The same script, payload, and model hit every provider, addressed the way its own API expects. Nobody gets a tuned or special path.
  • Repeated on a schedule. Every suite runs many iterations per provider, automated on a recurring schedule, so results reflect steady state rather than one lucky request.
  • Raw results published. Every run is committed as JSON to the public benchmarks repo, next to the code that produced it. Nothing is cherry-picked or held back.
  • How this comparison is built. Each benchmark compares the two providers' medians; results within 5% count as roughly even. A comparison is published only when both providers completed at least 50% of runs in 2 or more shared benchmarks run in the last 30 days.

Frequently asked questions

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CreateOS was faster in both shared sandbox benchmarks. In Burst TTI (October 30, 2026), CreateOS had a median time to interactive of 136ms versus 2.10s for Tenki, 15.5x faster. In DAX (October 30, 2026), CreateOS had a median total workload time of 53.21s versus 60.78s for Tenki, 1.14x faster.

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