Sandboxer vs machine0

machine0 rents persistent virtual machines with dedicated resources, static public IPs and per-minute billing, with optional GPUs in five regions. It is closer to a VPS than a sandbox API. Pick machine0 for GPUs or long-lived machines in several regions; pick Sandboxer for stop/resume and bundled agents.

Checked against machine0's public docs on October 24, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and machine0 compared
Capability	Sandboxer	machine0
Isolation	microVM Cloud Hypervisor, its own kernel	dedicated virtual machine Hypervisor not named.
Full Linux with root	Ubuntu 24.04, sudo, systemd	not stated on the official pages read
Docker inside	Preinstalled	Ubuntu images ship with Docker preinstalled.
Nested virtualization (/dev/kvm)		not stated on the official pages read
Pause and resume with memory	Running processes come back	partial Docs say suspend freezes state and resumes "exactly where it left off" and stops compute billing; RAM retention is not stated explicitly.
Fork a sandbox	Copy-on-write disk copy that boots fresh	partial Snapshot and clone from golden images, not a live fork.
HTTPS URL per port	Private with a token, or public	partial One authenticated HTTPS endpoint per VM at <vm>.mac0.io plus a static public IP.
Longest session	No limit on paid plans Auto-stop is up to 30 days or off	no limit VMs keep running until stopped or suspended.
Billing	Per second, flat rate per size Stopped sandboxes are free	per minute CPU VMs from $0.013/h (1 vCPU/1 GB), GPU VMs from $0.836/h; suspended VMs pay $0.078/GB-month image storage only.
GPUs		H100, H200, L40S, MI300X and RTX Ada options.
Self-host or open source		not stated on the official pages read
Regions	US East (Virginia) and EU Central (Finland)	US East, US West, UK, EU, Asia GPUs in US East, UK, EU and Asia.

= not documented publicly.

Where machine0 is strong

GPUs from $0.836/h in four regions.
Sizes up to 60 vCPU and 240 GB RAM.
Same price in all five regions.
Open-source NixOS and Ubuntu images and static public IPs.

Where Sandboxer differs

machine0 is a persistent VM service rather than a sandbox API with fork and RAM-keeping stop/resume.
machine0 offers GPUs; Sandboxer does not.
machine0 has five regions; Sandboxer has one.
Isolation, root, nested virtualization and self-hosting are not stated on the pages read.

Pick machine0 if

You need GPUs or sizes beyond 16 vCPU / 32 GB.
You need machines in US West, UK, EU or Asia with a static IP.

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. machine0 is a trademark of its owner. Sandboxer is an independent product and is not affiliated with machine0.

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