CreateOS Sandbox vs AWS Lambda MicroVMs
CreateOS Sandbox is an isolated, benchmarked runtime priced at the E2B/Daytona reference rate. AWS Lambda MicroVMs: AWS's serverless Firecracker micro-VM service for running user and AI-generated code, generally available since June 2026.
Pricing at a Glance
Compute and memory rates, verified June 2026. On total cost, CreateOS Sandbox adds no egress fees and pause to zero with your state kept.
CreateOS Sandbox
Best total cost- Compute
- $0.0504 /vCPU-hr
- Memory
- $0.0162 /GiB-hr
AWS Lambda MicroVMs
- Compute
- Usage-based
- Memory
- Usage-based
Why Teams Choose CreateOS Sandbox
What CreateOS Sandbox does that AWS Lambda MicroVMs does not — with an honest note on where AWS Lambda MicroVMs still has the edge.
Fork copies a diverged, mid-run paused sandbox into N branches. AWS launches many identical environments from a pre-built snapshot, which is a clean start for each, not a branch of a run that already happened.
First-class private overlay networks: put sandboxes on one network and stand up a multi-node k3s or Nomad cluster. AWS gives each MicroVM an inbound HTTPS endpoint and egress to the internet or a VPC, not a sandbox-to-sandbox mesh primitive.
No egress fees on sandbox traffic. AWS bills data transfer at EC2 rates, which taxes fan-out and multi-node workloads.
Self-host the control plane and storage (BYOS3) inside your own boundary, or run in your VPC or on-prem. A managed AWS service runs in AWS.
Where AWS Lambda MicroVMs is strong
AWS's distribution and the compliance umbrella every enterprise already trusts (SOC 2, HIPAA, ISO and more), generally available today at the scale that powers Lambda, with larger MicroVMs (up to 16 vCPU and 32 GB, with vertical burst to 4x baseline). For a team already standardized on AWS, that reach and trust are hard to match. CreateOS Sandbox is alpha, and self-host is its interim trust mechanism while certifications are on the roadmap.
Head-to-Head Comparison
Every dimension side by side, verified June 2026.
| Dimension | CreateOS Sandbox | AWS Lambda MicroVMs |
|---|---|---|
| Isolation | Firecracker micro-VM, own guest kernel | Firecracker micro-VM, own guest kernel |
| Suspend idle, resume warm | Yes, with auto-idle policies | Yes, with auto-idle policies |
| Fork diverged state | Yes, fork() a paused sandbox into N branches | Launch many from a snapshot; no diverged-state fork |
| Sandbox-to-sandbox networking | Private overlay networks, multi-node clusters | Inbound HTTPS endpoint; egress to internet or VPC |
| Egress cost | No egress fees | Data transfer billed at EC2 rates |
| Max size | 4 vCPU / 4 GB today; larger shapes on the roadmap | Up to 16 vCPU / 32 GB, burst to 4x baseline |
| Self-host and sovereignty | Self-host control plane + BYOS3, your VPC, or on-prem | Managed AWS service |
| Compliance | Alpha; self-host is the interim control | Inherits AWS compliance programs |
| Billing granularity | Per-second | Per-second compute |
Common Questions
Is CreateOS Sandbox an alternative to AWS Lambda MicroVMs?
Yes. Both run user and AI-generated code in Firecracker micro-VMs with their own guest kernel, suspend when idle, and resume warm. CreateOS Sandbox adds fork of a diverged paused state into N branches, private sandbox-to-sandbox overlay networks for multi-node clusters, no egress fees, and full self-host of the control plane and storage.
What can CreateOS Sandbox do that AWS Lambda MicroVMs cannot?
Three things, as of June 2026. Fork a mid-run paused sandbox into parallel branches (AWS launches identical fresh environments from a snapshot, not branches of a run). Network sandboxes together on a private overlay and stand up a k3s or Nomad cluster across them (AWS gives each MicroVM an inbound endpoint and egress to the internet or a VPC, not a sandbox mesh). And self-host the whole thing inside your own boundary, which a managed AWS service cannot do.
Why would I pick AWS Lambda MicroVMs over CreateOS Sandbox?
If you are already standardized on AWS and need a generally available service today under AWS's existing compliance programs, or you need a single MicroVM larger than 4 vCPU and 4 GB, AWS is the safer pick right now. CreateOS Sandbox is alpha, tops out at 4 vCPU and 4 GB today with larger shapes on the roadmap, and offers self-host as its interim trust mechanism. Pick CreateOS when you need fork, sandbox-to-sandbox networking, $0 egress, or to run inside your own boundary.
See CreateOS Sandbox for yourself
Book a demo, or explore the Sandbox and its pricing.