Blaxel vs CloudflareSandbox Benchmark Comparison

Blaxel
Faster in 2 of 2
vs
Cloudflare
Faster in 0 of 2

Blaxel 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.

BenchmarkBlaxelCloudflareResultRatio
Burst TTI
Time to interactive · Run October 30, 2026
380ms
100% success
779ms
100% success
Blaxel faster
2.05x
DAX
Total workload time · Run October 30, 2026
52.95s
100% success
189.88s
100% success
Blaxel faster
3.59x

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

Blaxel

100% success
Median
380ms
P95
425ms
P99
438ms
Blaxel Burst TTI results →

Cloudflare

100% success
Median
779ms
P95
1.21s
P99
1.36s
Cloudflare Burst TTI results →

Blaxel had a 2.05x lower median time to interactive (380ms vs 779ms for Cloudflare).

Median time to interactive over time

131 runs from March 13, 2026 to October 30, 2026.

BlaxelCloudflare
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

Blaxel

100% success
Median
52.95s
P95
52.95s
P99
52.95s
Blaxel DAX results →

Cloudflare

100% success
Median
189.88s
P95
189.88s
P99
189.88s
Cloudflare DAX results →

Blaxel had a 3.59x lower median total workload time (52.95s vs 189.88s for Cloudflare).

Median total workload time over time

4 runs from October 16, 2026 to October 30, 2026.

BlaxelCloudflare
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.

Blaxel

Active compute (GB-s)
$0.0097per run
52.95s median at $0.6624/hr

$0.0000115/GB-s on allocated RAM while active (16 GiB). CPU is derived from memory — 16 GB maps to ~6 cores, not 8. Upper bound shown.

Source pricing page

Cloudflare

Active CPU + provisioned memory
$0.038per run
189.88s median at $0.7200/hr

$0.000020/vCPU-s active-CPU + $0.0000025/GiB-s provisioned memory. CPU upper bound at 100% utilization. Requires $5/mo Workers Paid plan.

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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Blaxel was faster in both shared sandbox benchmarks. In Burst TTI (October 30, 2026), Blaxel had a median time to interactive of 380ms versus 779ms for Cloudflare, 2.05x faster. In DAX (October 30, 2026), Blaxel had a median total workload time of 52.95s versus 189.88s for Cloudflare, 3.59x faster.

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