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Sandboxer vs Novita Agent Sandbox

Novita Agent Sandbox is a usage-billed sandbox service from Novita AI with pause/resume, snapshots, templates, browser and computer use. Sandboxer is a full Ubuntu VM with root, Docker and nested KVM on flat plans. Pick Novita for pay-as-you-go use; pick Sandboxer for a full long-lived machine.

Checked against Novita Agent Sandbox's public docs on October 24, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and Novita Agent Sandbox compared
CapabilitySandboxerNovita Agent Sandbox
IsolationmicroVM
Cloud Hypervisor, its own kernel
Each sandbox has its own filesystem and runtime; the isolation technology is not named.
Full Linux with root
Ubuntu 24.04, sudo, systemd
not stated on the official pages read
Docker inside
Preinstalled
not stated on the official pages read
Nested virtualization (/dev/kvm)
not stated on the official pages read
Pause and resume with memory
Running processes come back
A paused sandbox keeps filesystem and memory state; compute billing stops; resume takes about a second.
Fork a sandbox
Copy-on-write disk copy that boots fresh
not stated on the official pages read
HTTPS URL per port
Private with a token, or public
not stated on the official pages read
Longest sessionNo limit on paid plans
Auto-stop is up to 30 days or off
1 h on free tier, 24 h on paid
Timeout counts from creation regardless of activity.
BillingPer second, flat rate per size
Stopped sandboxes are free
per second, vCPU + RAM
$0.0000098 per vCPU-second, $0.0000032 per GiB-second, storage $0.00009 per GB-hour with 60 GB included.
GPUs
not stated on the official pages read
Self-host or open source
not stated on the official pages read
RegionsUS East (Virginia) and EU Central (Finland)us-phx-1 (default) and us-virginia-1 (legacy)
Enterprise lists a deployment region of choice.

= not documented publicly.

Price for one 4 vCPU, 8 GB machine

Sandboxer
$0.036/hour
Flat per-second rate for the default size
Novita Agent Sandbox
$0.23/hour
4 vCPU × $0.0000098 × 3600 s + 8 GiB × $0.0000032 × 3600 s

List prices from each provider's pricing page, before free credits, plans and storage. This compares price only.

Where Novita Agent Sandbox is strong

  • Pay-as-you-go with no subscription fee listed on the sandbox page.
  • Pause/resume keeps memory and filesystem; snapshots and secrets are supported in the default region.
  • Browser use and computer use (with VNC viewing) are listed as supported workloads.
  • Enterprise lists a 99.95% uptime SLA.

Where Sandboxer differs

  • Novita sessions are capped at 24 hours on the paid tier; Sandboxer paid plans can run with no time limit.
  • Novita does not document Docker, root, nested virtualization or fork on the pages read.
  • Novita's paid tier tops out at 8 vCPU / 8 GB, while Sandboxer goes to 16 vCPU / 32 GB (xlarge, on the $100 plan or higher).

Pick Novita Agent Sandbox if

  • You want pay-as-you-go billing with no plan fee and a published enterprise SLA.
  • You want browser-use or desktop computer-use workloads, which Novita lists as supported.

Pick Sandboxer if

  • You want a full Ubuntu 24.04 VM with root, systemd, Docker and nested KVM, with Claude Code, Codex and other coding agents preinstalled.
  • You want stop to save memory and disk so that resume brings running processes back, with stopped sandboxes costing nothing.
  • You want one flat monthly plan whose dollars come back as machine time, with sandboxes that can run with no time limit on a paid plan.

Sources

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

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