Why people look elsewhere

Where Vercel Sandbox fits badly, from its provider page.

  • An always-on agent: the default session timeout is five minutes and the Hobby cap is 45 minutes.
  • A confidential Hobby workload: Hobby content may be used for model training, and the plan is non-commercial.
  • Anything needing SSH, a desktop or a raw TCP inbound port.

The alternatives, cheapest always-on agent first

Monthly machine cost at list prices, before any AI model. ✱ means it cannot run that workload exactly as described; the provider page says why.

ProviderA personal agent that stays on (Hermes, OpenClaw)A coding agent for one developerA code interpreter inside your productA browser agent for a small teamDoes fully, where Vercel Sandbox does not
Vercel Sandbox (for reference)$73.12 ✱$32.91$42.77$462.40—
Agent 37$10.60$6.76$2.42$36.3018: copy a running machine, automatic backups, can stay on indefinitely, choose the idle timeout, …
Lizard$19.00$19.00$19.00$85.7916: pause keeps memory, snapshots with memory, copy a running machine, can stay on indefinitely, …
Boat$20.00$20.00$20.00$90.0017: nested virtualisation, large machines, copy a running machine, can stay on indefinitely, …
InstaBox$20.00$20.00$20.00$90.5015: large machines, private link, real SSH, tunnel to your computer, …
Runtime$24.95$13.49$12.83$157.5032: nested virtualisation, any size you like, large machines, pause keeps memory, …
Sandboxer$40.00$20.00$20.00$100.0018: nested virtualisation, large machines, snapshots with memory, can stay on indefinitely, …
Morph$63.00$32.27$33.33$375.0014: any size you like, pause keeps memory, snapshots with memory, copy a running machine, …
Sprites$77.61$34.15$35.90$485.038: pause keeps memory, private link, tunnel to your computer, outbound data included, …
Cloudflare Sandbox$99.41 ✱$24.20 ✱$37.78$406.038: mount outside storage, automatic HTTPS, outbound data included, limited API keys, …
boxd$110.90$50.80$50.32$754.8020: large machines, pause keeps memory, snapshots with memory, copy a running machine, …
Daytona$122.07 ✱$55.75 ✱$55.38$830.7019: gPUs, copy a running machine, one volume, several machines, mount outside storage, …
Blaxel$123.29$57.79$55.20$828.0014: pause keeps memory, private link, your own domain, automatic HTTPS, …
Modal$143.71 ✱$46.15 ✱$49.32$1,159.8014: any size you like, large machines, gPUs, one volume, several machines, …
Tensorlake$250.00$24.46$28.60$331.0022: nested virtualisation, any size you like, large machines, resize while running, …
E2B
Vercel Sandbox vs E2B
$270.89 ✱$202.99 ✱$55.20$828.0013: pause keeps memory, snapshots with memory, copy a running machine, stored secrets, …

Compare any two or three in full on side by side, or price your own workload in the cost calculator.