Caged vs Sendblue Sandboxes
Caged costs $0.06 per vCPU-hour and Sendblue Sandboxes costs $0.165 per vCPU-hour. Caged runs Firecracker microVMs and limits a session to 4 hours. Sendblue Sandboxes runs containers.
Updated
Caged
- Isolation
- Firecracker microVM
- Free tier
- Free plan, 5 sandboxes a day
- Max session
- 4 hours
Sendblue Sandboxes
- Isolation
- Container
- Free tier
- $100 free compute, once per phone number
- Max session
- Not listed
What is different
4 fields differ. The rest are the same or not listed.
Caged
Sendblue Sandboxes
- vCPU, per hour
- Caged: $0.06
- Sendblue Sandboxes: $0.165
- Free tier
- Caged: Free plan, 5 sandboxes a day
- Sendblue Sandboxes: $100 free compute, once per phone number
- Largest sandbox
- Caged: 8 vCPU · 8 GiB
- Sendblue Sandboxes: 2 vCPU · 8 GiB
- Isolation
- Caged: Firecracker microVM
- Sendblue Sandboxes: Container
Full comparison
18 fields, at each provider's list price
Cagedcaged
Sendblue Sandboxessendblue
Pricing
- vCPU, per hour
- Caged: $0.06
- Sendblue Sandboxes: $0.165
- RAM, per GiB-hour
- Caged: Included
- Sendblue Sandboxes: Included
- Storage
- Caged: Free
- Sendblue Sandboxes: Not listed
- Free tier
- Caged: Free plan, 5 sandboxes a day
- Sendblue Sandboxes: $100 free compute, once per phone number
- Paid plan from
- Caged: $29 / month
- Sendblue Sandboxes: Not listed
- Billing
- Caged: Bundled machine time
- Sendblue Sandboxes: Bundled machine time
Limits
- Max session
- Caged: 4 hours
- Sendblue Sandboxes: Not listed
- Idle stop
- Caged: Not listed
- Sendblue Sandboxes: After 10 minutes
- Largest sandbox
- Caged: 8 vCPU · 8 GiB
- Sendblue Sandboxes: 2 vCPU · 8 GiB
- Concurrent sandboxes
- Caged: Up to 5
- Sendblue Sandboxes: Up to 5
Platform
- Isolation
- Caged: Firecracker microVM
- Sendblue Sandboxes: Container
- GPU
- Caged: Not listed
- Sendblue Sandboxes: Not listed
- Snapshots
- Caged: Not listed
- Sendblue Sandboxes: Not listed
- Pause and resume
- Caged: Not listed
- Sendblue Sandboxes: No
Developer
- SDKs
- Caged: Not listed
- Sendblue Sandboxes: Not listed
- Integrations
- Caged: MCP, Claude Code
- Sendblue Sandboxes: Not listed
Trust
- License
- Caged: Not listed
- Sendblue Sandboxes: Not listed
- BYOC
- Caged: Not listed
- Sendblue Sandboxes: Not listed
Hourly cost
One sandbox running for one hour
Caged
Sendblue Sandboxes
- 1 vCPU · 2 GiB
- Caged: $0.060
- Sendblue Sandboxes: $0.165
- 2 vCPU · 4 GiB
- Caged: $0.120
- Sendblue Sandboxes: $0.330
- 4 vCPU · 8 GiB
- Caged: $0.240
- Sendblue Sandboxes: $0.660
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Caged fits when
- You want each sandbox in its own microVM.
- You use MCP or Claude Code.
- You want the lower list price: $0.120 against $0.330 an hour for 2 vCPU and 4 GiB.
- You need a sandbox larger than 2 vCPU · 8 GiB.
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