Cloudflare Sandbox vs Sendblue Sandboxes
Cloudflare Sandbox costs $0.072 per vCPU-hour and Sendblue Sandboxes costs $0.165 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Sendblue Sandboxes runs containers.
Updated
Cloudflare Sandbox
- Isolation
- Firecracker microVM
- Free tier
- None
- Max session
- Not listed
Sendblue Sandboxes
- Isolation
- Container
- Free tier
- $100 free compute, once per phone number
- Max session
- Not listed
What is different
6 fields differ. The rest are the same or not listed.
Cloudflare Sandbox
Sendblue Sandboxes
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Sendblue Sandboxes: $0.165
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Sendblue Sandboxes: Included
- Free tier
- Cloudflare Sandbox: None
- Sendblue Sandboxes: $100 free compute, once per phone number
- Billing
- Cloudflare Sandbox: Active CPU time only
- Sendblue Sandboxes: Bundled machine time
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Sendblue Sandboxes: 2 vCPU · 8 GiB
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Sendblue Sandboxes: Container
Full comparison
18 fields, at each provider's list price
Cloudflare Sandboxdevelopers
Sendblue Sandboxessendblue
Pricing
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Sendblue Sandboxes: $0.165
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Sendblue Sandboxes: Included
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Sendblue Sandboxes: Not listed
- Free tier
- Cloudflare Sandbox: None
- Sendblue Sandboxes: $100 free compute, once per phone number
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Sendblue Sandboxes: Not listed
- Billing
- Cloudflare Sandbox: Active CPU time only
- Sendblue Sandboxes: Bundled machine time
Limits
- Max session
- Cloudflare Sandbox: Not listed
- Sendblue Sandboxes: Not listed
- Idle stop
- Cloudflare Sandbox: Not listed
- Sendblue Sandboxes: After 10 minutes
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Sendblue Sandboxes: 2 vCPU · 8 GiB
- Concurrent sandboxes
- Cloudflare Sandbox: Not listed
- Sendblue Sandboxes: Up to 5
Platform
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Sendblue Sandboxes: Container
- GPU
- Cloudflare Sandbox: Not listed
- Sendblue Sandboxes: Not listed
- Snapshots
- Cloudflare Sandbox:
- Sendblue Sandboxes: Not listed
- Pause and resume
- Cloudflare Sandbox: Not listed
- Sendblue Sandboxes: No
Developer
- SDKs
- Cloudflare Sandbox: TypeScript
- Sendblue Sandboxes: Not listed
- Integrations
- Cloudflare Sandbox: Claude Code, OpenAI Agents SDK
- Sendblue Sandboxes: Not listed
Trust
- License
- Cloudflare Sandbox: Not listed
- Sendblue Sandboxes: Not listed
- BYOC
- Cloudflare Sandbox: Not listed
- Sendblue Sandboxes: Not listed
Hourly cost
One sandbox running for one hour
Cloudflare Sandbox
Sendblue Sandboxes
- 1 vCPU · 2 GiB
- Cloudflare Sandbox: $0.090
- Sendblue Sandboxes: $0.165
- 2 vCPU · 4 GiB
- Cloudflare Sandbox: $0.180
- Sendblue Sandboxes: $0.330
- 4 vCPU · 8 GiB
- Cloudflare Sandbox: $0.360
- Sendblue Sandboxes: $0.660
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Cloudflare Sandbox fits when
- You want each sandbox in its own microVM.
- You use Claude Code or the OpenAI Agents SDK.
- You want the lower list price: $0.180 against $0.330 an hour for 2 vCPU and 4 GiB.
- You need snapshots.
Sendblue Sandboxes fits when
- You want to start without paying.
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