sandboxrouter
← Providers

Freestyle

provider: "freestyle"

Per second on allocated fixed snapshot size; estimate includes disk at $0.000086/GiB-h; free monthly 200 vCPU-h, 400 GiB-h RAM, 60,000 GiB-h disk; Hobby $50/mo incl. $50 (max 8/16), Pro $500 (max 32/64); paused storage only.

List price per hour

1 vCPU · 2 GB$0.134
2 vCPU · 4 GB$0.134
4 vCPU · 8 GB$0.267
8 vCPU · 16 GB$0.534
16 vCPU · 32 GB$1.07
32 vCPU · 128 GBmax 64 GB memory
Source
www.freestyle.sh, 2026-11-05 (an estimate, not a bill)
Billing
the size you ask for, while it runs
Plan
none needed

Adapter

Supports
Exec + streaming · Files · Pause · Custom image
Max size
32 vCPU · 64 GB
Routing
Chosen when it's the cheapest fit, or as a fallback

Measured on real accounts

Real-account check
14 / 14 steps
2026-11-13
Cold start
838 ms
median, 1 location
Succeeded
100%
of benchmark sandboxes
Size you get
not measured
no cost run yet
Billed vs list price
not measured
no cost run yet

Help verify Freestyle

Have a Freestyle account? These run real sandboxes on it, for a few cents at most, and write result files that fill in the blanks above. Results never include your keys. Run them in a clone of the repo and open a pull request with the files: CI checks every file for keys and impossible numbers, and a maintainer reviews each one before it shows here.

terminal
npx @sandboxrouter/sdk cost run --provider freestyle --minutes 10 --by YOUR_GITHUB_USERNAME

Real-account check, step by step

14 of 14 steps passed on a real account, 2026-11-13 (v0.7.0).

  • createpassed
  • exec: stdout, stderr, exit codepassed
  • exec: env and cwdpassed
  • exec: UTF-8 outputpassed
  • exec: streamingoutput arrived only at the end (no live streaming)passed, with a note
  • files: binary round-trippassed
  • files: 1 MB round-trippassed
  • files: missing file is an errorpassed
  • files: visible to commandspassed
  • exec: command timeoutpassed
  • exec: timed-out command was stoppedpassed
  • pause and resumepassed
  • killpassed
  • killed sandbox is gonepassed
setup
npm i @sandboxrouter/sdk
export FREESTYLE_API_KEY=...
use Freestyle
import { Router } from "@sandboxrouter/sdk";

const router = new Router();
const sbx = await router.create({}, { provider: "freestyle" });
await sbx.exec("uname -a", { onStdout: (c) => process.stdout.write(c) });
await sbx.kill();