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Sandboxer vs Hyperstack

Hyperstack rents GPU virtual machines (H100, H200, B200 and more) and CPU-only VMs, billed per minute on a prepaid platform. Sandboxer has no GPUs but resumes running processes and ships coding agents. Pick Hyperstack for GPU compute; pick Sandboxer for agent sandboxes.

Checked against Hyperstack's public docs on October 28, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and Hyperstack compared
CapabilitySandboxerHyperstack
IsolationmicroVM
Cloud Hypervisor, its own kernel
Virtual machine
Pricing page lists VM flavors; hypervisor not stated.
Full Linux with root
Ubuntu 24.04, sudo, systemd
Docker inside
Preinstalled
Nested virtualization (/dev/kvm)
Pause and resume with memory
Running processes come back
Fork a sandbox
Copy-on-write disk copy that boots fresh
HTTPS URL per port
Private with a token, or public
Longest sessionNo limit on paid plans
Auto-stop is up to 30 days or off
BillingPer second, flat rate per size
Stopped sandboxes are free
Per minute, prepaid; reserved contracts invoiced monthly
GPUs
B200, H200, H100, A100, L40, A6000, A4000 and more.
Self-host or open source
RegionsUS East (Virginia) and EU Central (Finland)

= not documented publicly.

Where Hyperstack is strong

  • Per-minute on-demand billing with listed prices from $0.15 per hour (A4000).
  • Broad GPU range up to B200 at published prices.
  • Reserved contracts available.
  • CPU-only VM flavors for non-GPU work.

Where Sandboxer differs

  • Hyperstack has GPUs; Sandboxer has none.
  • Hyperstack bills per minute; Sandboxer per second.
  • Hyperstack requires a prepaid balance; Sandboxer uses plans.
  • Hyperstack hibernation and RAM preservation are not documented in pages read.

Pick Hyperstack if

  • You need H100, H200 or B200 GPUs at published hourly prices.
  • You want reserved GPU contracts.
  • You want per-minute GPU billing without a subscription.

Pick Sandboxer if

  • You need a CPU sandbox with Docker, nested KVM and systemd that stops and resumes with running processes intact, and you do not need GPUs.
  • You want coding agents (Claude Code, Codex and others) preinstalled and driven through a prompt API with streamed events.
  • You want per-second billing with stopped sandboxes costing nothing and a flat $20 to $2000 monthly plan whose dollars return as machine time.

Sources

Products change. If something here is out of date, email hello@sandboxer.com and we'll fix it. Hyperstack is a trademark of its owner. Sandboxer is an independent product and is not affiliated with Hyperstack.

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