CreateOS Sandbox vs Tangle Sandbox
Pick Tangle if you run many cloud coding agents or eval workers and want per-key spend caps, fleets and short GPU leases attached to a CPU sandbox. Pick CreateOS Sandbox if you need the same micro-VM isolation on every sandbox, published size and concurrency limits, and a free plan to start without prepaid credit.
Pricing at a Glance
CreateOS rates verified 17 October 2026. Tangle Sandbox 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
Tangle Sandbox
- Compute
- $0.0104 /vCPU-hr
- Memory
- $0.0071 /GiB-hr
Tangle bills per second from prepaid credit at about $0.0104 per CPU core-hour and $0.0071 per GB-hour, with a $0.04 hourly minimum charge and egress at $0.05 per GB beyond 2 TB per sandbox on Pro, as of 17 October 2026.
Where CreateOS Sandbox Fits Better
What CreateOS Sandbox brings to this matchup, with a plain note on where Tangle Sandbox has the edge.
One isolation model for every sandbox: a Firecracker micro-VM with its own guest kernel; Tangle's backend may be a container, a microVM or an operator driver.
Published ceilings for size and concurrency per plan; Tangle publishes neither.
A Free plan with 500 credits and no card; Tangle requires prepaid credit for paid calls.
Pause saves memory and CPU state and fork clones it; Tangle documents snapshot-backed templates of the filesystem.
Where Tangle Sandbox is strong
Tangle adds agent-native extras on top of a sandbox: durable agent sessions inside one machine, budgeted API keys and fleets, an egress mode that learns the allowlist from logged denials, and GPU leases you attach only for the seconds you need CUDA.
Which to Pick
Pick CreateOS Sandbox if
- Your security review needs one documented isolation boundary for every sandbox.
- You want written limits on size and concurrency.
- You want to try the product on a free plan first.
Pick Tangle Sandbox if
- You need a GPU for part of a job and want to lease it onto a running CPU sandbox.
- You want spend caps per API key across fleets of agents.
- Low list rates matter and you accept a $0.04 hourly minimum.
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.
| Dimension | CreateOS Sandbox | Tangle Sandbox |
|---|---|---|
| Isolation | Firecracker micro-VM with its own guest kernel, root filesystem and network identity | Varies by backend: a managed container, a microVM or an operator-backed driver behind one SDK |
| Pause and resume | Saves disk, memory and CPU state; vCPU stops billing while paused, memory and storage still bill | Stopped sandboxes keep files and agent sessions and resume with box.resume() |
| Fork | Fork a paused sandbox into many independent copies, each with its own id and IP | Not published as a primitive; snapshot and restore, and fleets with a shared workspace |
| Outbound network default | Open with no rules; deny-by-default once any host, IP, CIDR or wildcard rule exists, enforced on the host outside the VM | Open for personal sandboxes; strict (allowDomains) and blocked modes, changeable on a running sandbox |
| Largest size | 8 vCPU / 16 GB on Enterprise (Pro 8 vCPU / 8 GB, Beginner 4 / 4, Free 1 / 1) | Not published |
| Concurrency | Free 1, Beginner 5, Pro 20, Enterprise 30; paused sandboxes count toward the cap | Not published |
| Billing | Per second: $0.03616363/vCPU-hr, $0.01159025/GiB-hr, storage $0.0001584/GB-hr; no egress fees, 50 GiB bandwidth budget per sandbox | Per second from prepaid credit: about $0.0104/core-hr, $0.0071/GB-hr, $0.04 hourly minimum |
| SDKs and interfaces | TypeScript, Go, Python, Rust, C#, Java (all but TypeScript pre-1.0), CLI, MCP, REST | TypeScript and Python SDKs, HTTP API, CLI, hosted MCP server |
| GPU | No GPU shapes | Yes, GPU leases (for example 3090 or H100) attached to a running sandbox |
Common Questions
What isolation does a Tangle sandbox use?
It depends on the driver: Tangle puts a managed container, a microVM or an operator-backed driver behind one SDK, and mentions both Docker and Firecracker. CreateOS Sandbox runs every sandbox as a Firecracker micro-VM with its own guest kernel, root filesystem and network identity.
Can I attach a GPU to a Tangle sandbox?
Yes. Tangle leases GPUs such as an NVIDIA 3090 or H100 onto a running sandbox from providers including RunPod, Lambda and Modal, with a spend cap and lifetime. CreateOS Sandbox offers no GPU shapes.
Does Tangle have a free plan?
No free credit, according to Tangle: paid calls need prepaid credit, although its egress pricing lists a free plan allowance of 100 GiB per account per month. CreateOS Sandbox has a Free plan with 500 credits, one concurrent sandbox up to 1 vCPU / 1 GB, and no card required.
Sources
Checked 17 October 2026.
See CreateOS Sandbox for yourself
Book a demo, or explore the Sandbox and its pricing.