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Sandboxer vs Open Telekom Cloud (ECS)

Open Telekom Cloud (now T Cloud Public) ECS is an enterprise virtual-machine service with many flavors, GPU options and a 99.95% SLA. It is general infrastructure, not an agent sandbox. Choose it for regulated or EU-hosted enterprise workloads; choose Sandboxer for disposable agent VMs that pause and fork.

Checked against Open Telekom Cloud (ECS)'s public docs on October 24, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and Open Telekom Cloud (ECS) compared
CapabilitySandboxerOpen Telekom Cloud (ECS)
IsolationmicroVM
Cloud Hypervisor, its own kernel
Virtual machine (KVM) or metal instance
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
hourly (Elastic), monthly reserved, or upfront reserved
Elastic (hourly), Reserved (monthly) and Reserved Upfront; OS licence cost included.
GPUs
GPU flavors with V100, T4, A100, A40, L4 and H100.
Self-host or open source
RegionsUS East (Virginia) and EU Central (Finland)2 regions, 6 availability zones

= not documented publicly.

Where Open Telekom Cloud (ECS) is strong

  • Several flavor classes including GPU-accelerated flavors and metal instances.
  • 99.95% availability SLA with automatic recovery on host failure.
  • Reserved pricing for steady workloads.

Where Sandboxer differs

  • ECS is general IaaS; its page describes no sandbox API, memory-preserving pause or fork, which Sandboxer provides.
  • Billing is hourly (Elastic) rather than per second.
  • Only two regions are listed on the product page.

Pick Open Telekom Cloud (ECS) if

  • You need an SLA-backed enterprise cloud with GPU flavors or metal instances.
  • You need an EU provider with a reserved-capacity pricing model.

Pick Sandboxer if

  • You need disposable full VMs you can stop and resume with memory and processes restored, billed per second.
  • You want every port reachable as an HTTPS URL and a prompt API for preinstalled coding agents.

Sources

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 If something here is out of date, email hello@sandboxer.com and we'll fix it.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

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