CoreWeave Sandboxes vs Sendblue Sandboxes

CoreWeave Sandboxes costs $0.128 per vCPU-hour and Sendblue Sandboxes costs $0.165 per vCPU-hour. CoreWeave Sandboxes runs microVMs, offers GPUs and limits a session to 720 hours. Sendblue Sandboxes runs containers.

Updated

CoreWeave Sandboxes

Isolation
MicroVM
Free tier
Not listed
Max session
720 hours

Sendblue Sandboxes

Isolation
Container
Free tier
$100 free compute, once per phone number
Max session
Not listed

What is different

5 fields differ. The rest are the same or not listed.

CoreWeave Sandboxes
Sendblue Sandboxes
vCPU, per hour
CoreWeave Sandboxes: $0.128
Sendblue Sandboxes: $0.165
RAM, per GiB-hour
CoreWeave Sandboxes: $0.0212
Sendblue Sandboxes: Included
Billing
CoreWeave Sandboxes: Per second
Sendblue Sandboxes: Bundled machine time
Concurrent sandboxes
CoreWeave Sandboxes: Up to 2,000
Sendblue Sandboxes: Up to 5
Isolation
CoreWeave Sandboxes: MicroVM
Sendblue Sandboxes: Container

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
CoreWeave Sandboxes: $0.128
Sendblue Sandboxes: $0.165
RAM, per GiB-hour
CoreWeave Sandboxes: $0.0212
Sendblue Sandboxes: Included
Storage
CoreWeave Sandboxes: Snapshots and volumes billed separately
Sendblue Sandboxes: Not listed
Free tier
CoreWeave Sandboxes: Not listed
Sendblue Sandboxes: $100 free compute, once per phone number
Paid plan from
CoreWeave Sandboxes: Not listed
Sendblue Sandboxes: Not listed
Billing
CoreWeave Sandboxes: Per second
Sendblue Sandboxes: Bundled machine time

Limits

Max session
CoreWeave Sandboxes: 720 hours
Sendblue Sandboxes: Not listed
Idle stop
CoreWeave Sandboxes: Not listed
Sendblue Sandboxes: After 10 minutes
Largest sandbox
CoreWeave Sandboxes: Not listed
Sendblue Sandboxes: 2 vCPU · 8 GiB
Concurrent sandboxes
CoreWeave Sandboxes: Up to 2,000
Sendblue Sandboxes: Up to 5

Platform

Isolation
CoreWeave Sandboxes: MicroVM
Sendblue Sandboxes: Container
GPU
CoreWeave Sandboxes:
Sendblue Sandboxes: Not listed
Snapshots
CoreWeave Sandboxes:
Sendblue Sandboxes: Not listed
Pause and resume
CoreWeave Sandboxes: Not listed
Sendblue Sandboxes: No

Developer

SDKs
CoreWeave Sandboxes: Python, TypeScript
Sendblue Sandboxes: Not listed
Integrations
CoreWeave Sandboxes: Claude Code
Sendblue Sandboxes: Not listed

Trust

License
CoreWeave Sandboxes: Not listed
Sendblue Sandboxes: Not listed
BYOC
CoreWeave Sandboxes: Your CKS clusters. CoreWeave runs the gateway.
Sendblue Sandboxes: Not listed

Hourly cost

One sandbox running for one hour

CoreWeave Sandboxes
Sendblue Sandboxes
1 vCPU · 2 GiB
CoreWeave Sandboxes: $0.170
Sendblue Sandboxes: $0.165
2 vCPU · 4 GiB
CoreWeave Sandboxes: $0.341
Sendblue Sandboxes: $0.330
4 vCPU · 8 GiB
CoreWeave Sandboxes: $0.682
Sendblue Sandboxes: $0.660

Compute only, at list rates.

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Which one fits

Based on the fields above

CoreWeave Sandboxes fits when

  • You need GPUs.
  • You want each sandbox in its own microVM.
  • You use Claude Code.
  • You need snapshots.

Sendblue Sandboxes fits when

  • You want the lower list price: $0.330 against $0.341 an hour for 2 vCPU and 4 GiB.

More comparisons

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