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CreateOS Sandbox vs InsForge InstaCloud

InstaCloud is the pick when a coding agent should build and run a full-stack app, with a branch of the database and every service per pull request. CreateOS Sandbox is the pick when the agent needs a long-running Linux machine to execute arbitrary code, with outbound rules you control.

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Pricing at a Glance

CreateOS rates verified 17 October 2026. InsForge InstaCloud pricing as published on 17 October 2026. Rates billed per GB rather than per GiB, or as bundled sizes, are quoted as published rather than converted.

CreateOS Sandbox

Compute
$0.0362 /vCPU-hr
Memory
$0.0116 /GiB-hr
No egress fees, 50 GiB bandwidth budgetvCPU stops billing while paused

InsForge InstaCloud

Compute
$0.0278 /vCPU-hr
Memory
See below

InstaCloud bills per second at $0.00000772 per vCPU-second and $0.00000386 per GB-second of memory, with egress at $0.05 per GB, a Free plan with $10 monthly credit and Pro at a $20 monthly minimum, as of 17 October 2026.

Where CreateOS Sandbox Fits Better

What CreateOS Sandbox brings to this matchup, with a plain note on where InsForge InstaCloud has the edge.

No session length cap and shell access over API-authenticated tunnels or SSH; InstaCloud bounds one-shot exec at 180 s and gates interactive shells behind approval.

Outbound allowlist enforced on the host; InstaCloud documents no egress policy.

No per-GB egress fee, with a 50 GiB outbound budget per sandbox by default; InstaCloud charges $0.05 per GB.

Where InsForge InstaCloud is strong

InstaCloud branches at the environment level for agents: one command forks the Postgres database with its data, the bucket and every compute service, so each agent or PR gets a full, isolated copy of production-like state, each with its own URL and approval gates.

Which to Pick

Pick CreateOS Sandbox if

  • The agent runs long jobs or needs an interactive shell.
  • You need to restrict where code can send traffic.
  • Your workload pushes a lot of outbound data.

Pick InsForge InstaCloud if

  • A coding agent builds and operates your full-stack web app.
  • Each pull request should get its own database copy with real data.
  • You want services that scale to zero and wake on request.

Head-to-Head Comparison

Every dimension side by side, checked on 17 October 2026 against each vendor's own docs and pricing pages. "Not published" means we could not find it on the vendor's pages, not that the feature is missing.

DimensionCreateOS SandboxInsForge InstaCloud
Built forSandboxes created by API for agent and untrusted codeAgents provisioning, deploying and operating full-stack app backends
IsolationFirecracker micro-VM with its own guest kernelMicroVM per compute service; no Docker-in-Docker or nested virtualisation
Ephemeral per-run environmentsYes: create a sandbox per run by API and destroy it afterBranches clone the whole environment, including copy-on-write Postgres, per PR or agent
Pause and resumeYes: pause saves disk, memory and CPU state; vCPU stops billing, memory and storage still billServices scale to zero and wake on the next request; volume-backed services stop and cold-wake
Outbound networkOpen with no rules; deny-by-default once any host, IP, CIDR or wildcard rule exists, enforced on the host outside the VMNot published; egress billed at $0.05 per GB
BillingPer second: $0.03616363 per vCPU-hour, $0.01159025 per GiB-hour, storage $0.0001584 per GB-hourPer second: $0.00000772 per vCPU-second, $0.00000386 per GB-second, plus plan minimums
Run untrusted codeYes: each sandbox is its own micro-VM, with host-enforced outbound rules and inbound closed by defaultOne-shot exec bounded at 180 s; interactive shells approval-gated; HTTP ports only

Common Questions

How long can an InstaCloud exec command run?

InstaCloud bounds one-shot insta compute exec commands at 180 seconds, though services themselves are long-running. A CreateOS sandbox has no session length cap, and you can run commands, managed processes or an interactive shell in it for as long as it lives.

Does InstaCloud fork a database like CreateOS forks a sandbox?

InstaCloud's branches fork more than CreateOS does: copy-on-write Postgres with the parent's data, the bucket and every compute service. CreateOS forks a single paused sandbox, disk and memory, into new independent sandboxes; it has no managed database to branch.

What does outbound data cost on InstaCloud versus CreateOS?

InstaCloud charges $0.05 per GB of egress. CreateOS has no per-GB egress fee; each sandbox has a 50 GiB outbound budget by default, and recharging past it consumes account credit at a rate the docs do not publish.

Sources

Checked 17 October 2026.

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