Sandboxer vs Vultr

Vultr is a general-purpose public cloud selling hourly-billed virtual machines, bare metal and GPU servers across 33 regions. Unlike Sandboxer, a Vultr VM keeps billing while stopped and has no memory-preserving pause, fork or per-port HTTPS URLs; it is the better pick for long-running servers, many regions or GPUs, while Sandboxer fits short-lived, pausable agent workspaces billed per second.

Checked against Vultr's public docs on October 27, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and Vultr compared
Capability	Sandboxer	Vultr
Isolation	microVM Cloud Hypervisor, its own kernel	full VM Vultr describes its Cloud Compute instances as virtual machines; hypervisor not named
Full Linux with root	Ubuntu 24.04, sudo, systemd	Marketplace images give a sudo user; you control the OS
Docker inside	Preinstalled	Docker CE available as a one-click Marketplace app, or install it yourself
Nested virtualization (/dev/kvm)		partial VX1 'supports additional CPU features including support for virtualization'; not stated for regular Cloud Compute
Pause and resume with memory	Running processes come back	Stopped servers keep accruing hourly charges; no documented RAM-preserving pause
Fork a sandbox	Copy-on-write disk copy that boots fresh	partial Snapshots are region-independent and can be deployed as new instances in another region
HTTPS URL per port	Private with a token, or public	Public IP per VM; no managed per-port HTTPS URLs found
Longest session	No limit on paid plans Auto-stop is up to 30 days or off	no limit Servers run until destroyed; billed until then
Billing	Per second, flat rate per size Stopped sandboxes are free	hourly, capped at 672 h/month (730 h for GPU); billed while powered off Minimum billing unit is one hour
GPUs		Cloud GPU plans with NVIDIA GPUs (e.g. L40S) are listed in Vultr's public plans API
Self-host or open source
Regions	US East (Virginia) and EU Central (Finland)	33 regions on six continents Count from Vultr's public regions API

= not documented publicly.

Price for one 4 vCPU, 8 GB machine

Sandboxer

$0.036/hour

Flat per-second rate for the default size

Vultr

$0.055/hour

Cloud Compute Regular Performance vc2-4c-8gb, 4 vCPU / 8 GB / 160 GB SSD: $0.055/h, $40/month, in most regions (São Paulo $0.082/h), per Vultr's public plans API.

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

Where Vultr is strong

33 regions across six continents give a wide choice of locations for servers.
One account covers small VMs from under a cent an hour up to bare metal and NVIDIA GPU servers.
Snapshots are region-independent, so an image built in one region can be deployed in another.
VX1 plans have dedicated CPUs and support for virtualization CPU features.

Where Sandboxer differs

A stopped Vultr server is still billed hourly; a stopped Sandboxer sandbox costs nothing.
Vultr has no memory-preserving pause; Sandboxer stop/resume brings running processes back.
Vultr bills in whole hours with a monthly cap, while Sandboxer bills per second.
Vultr offers GPUs and 33 regions; Sandboxer runs in us-east and eu-central and has no GPUs.

Pick Vultr if

You need a long-running server or a fixed monthly price in a specific city.
You need GPUs, bare metal or many regions.
You want one provider for VMs, bare metal and GPU servers in many locations.

Pick Sandboxer if

Agents need many short-lived VMs that pause with memory and cost nothing while stopped.
You want coding agents preinstalled, a prompt API and an MCP server out of the box.
You want any port as an HTTPS URL and per-second billing without managing servers.

Sources

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

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