CreateOS Sandbox vs E2B
CreateOS Sandbox is an isolated, benchmarked runtime billed per second. E2B: An open-source runtime for running AI-generated code in isolated sandboxes.
Pricing at a Glance
Compute and memory rates, verified June 2026. On total cost, CreateOS Sandbox adds no egress fees and pause that stops vCPU billing with your state kept.
CreateOS Sandbox
Best total cost- Compute
- $0.0362 /vCPU-hr
- Memory
- $0.0116 /GiB-hr
E2B
- Compute
- $0.0504 /vCPU-hr
- Memory
- $0.0162 /GiB-hr
Why Teams Choose CreateOS Sandbox
What CreateOS Sandbox does that E2B does not, with an honest note on where E2B still has the edge.
Same headline rate, with published cost and margin so you see exactly what you pay for.
Part of one governed execution layer (routing, output validation, audit), not a standalone runtime.
No Enterprise minimum to reach production.
Where E2B is strong
A mature open-source SDK and a large developer community.
Head-to-Head Comparison
Every dimension side by side. Rates verified June 2026; isolation, egress defaults, concurrency, session length, timeout behaviour, SDKs and preinstalled packages verified 7 September 2026 against each vendor's own docs and pricing pages.
| Dimension | CreateOS Sandbox | E2B |
|---|---|---|
| vCPU rate | $0.03616363/vCPU-hr | $0.0504/vCPU-hr |
| RAM rate | $0.01159025/GiB-hr | $0.0162/GiB-hr |
| Egress | No egress fees | Not charged |
| Pause | Memory and storage only, state preserved | Yes, state preserved |
| Pricing transparency | Cost and margin published | Price only |
| Enterprise | No minimum | Contact-sales minimum |
| Isolation | Firecracker micro-VM, own guest kernel | Firecracker micro-VM, own guest kernel |
| Egress default | Open with no rules; deny-by-default once an allowlist is set (host, port, wildcard, IP, CIDR), enforced in-kernel outside the VM | Internet on by default; allow/deny by IP, CIDR, hostname or wildcard; domain rules cover HTTP 80 and TLS 443 only |
| Concurrent sandboxes | 1 on Free, 5 Beginner, 20 Pro, 30 Enterprise (GET /v1/whoami shows your running count) | 20 on Hobby, 100 on Pro (extra up to 1,100), per e2b.dev/pricing |
| Max session length | None; runs until destroyed, paused or auto-paused | 1 hour on Hobby, 24 hours on Pro |
| On timeout | No timer; optional idle auto-pause (60 s to 24 h) snapshots state, explicit destroy cleans up | Pauses on timeout expiry; call kill to terminate |
| SDKs | TypeScript SDK, CLI, MCP, REST from any language; no Python SDK yet | Python and JavaScript SDKs |
| Preinstalled Python packages | devbox:1 ships pandas, numpy, scipy, matplotlib, pyarrow, scikit-learn; templates for pinned sets | Code-interpreter template ships numpy, pandas, matplotlib; custom templates |
| Free tier | Free: 500 credits, 1 concurrent sandbox, 10 per day; paid plans from Beginner | Hobby: $100 one-time credit, 20 concurrent, 1 h sessions |
Common Questions
Is CreateOS Sandbox cheaper than E2B?
CreateOS Sandbox bills $0.03616363 per vCPU-hour and $0.01159025 per GiB-hour; E2B bills $0.0504 and $0.0162, verified June 2026. CreateOS adds published cost and margin, no Enterprise minimum, and runs inside one governed execution layer.
What does CreateOS Sandbox add over E2B?
Radical pricing transparency (we publish our cost and margin), no Enterprise minimum to reach production, and integration with the wider CreateOS execution layer for routing, output validation, and audit. E2B is a standalone runtime.
See CreateOS Sandbox for yourself
Book a demo, or explore the Sandbox and its pricing.