Sendblue Sandboxes vs Tenki Sandbox

Sendblue Sandboxes costs $0.165 per vCPU-hour and Tenki Sandbox costs $0.0504 per vCPU-hour. Sendblue Sandboxes runs containers. Tenki Sandbox runs full VMs.

Updated

Sendblue Sandboxes

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

Tenki Sandbox

Isolation
Full VM
Free tier
$100 credit, one time
Max session
Not listed

What is different

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

Sendblue Sandboxes
Tenki Sandbox
vCPU, per hour
Sendblue Sandboxes: $0.165
Tenki Sandbox: $0.0504
RAM, per GiB-hour
Sendblue Sandboxes: Included
Tenki Sandbox: $0.0162
Free tier
Sendblue Sandboxes: $100 free compute, once per phone number
Tenki Sandbox: $100 credit, one time
Billing
Sendblue Sandboxes: Bundled machine time
Tenki Sandbox: Per second
Largest sandbox
Sendblue Sandboxes: 2 vCPU · 8 GiB
Tenki Sandbox: 16 vCPU · 64 GiB
Concurrent sandboxes
Sendblue Sandboxes: Up to 5
Tenki Sandbox: Up to 100
Isolation
Sendblue Sandboxes: Container
Tenki Sandbox: Full VM
Pause and resume
Sendblue Sandboxes: No
Tenki Sandbox:

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Sendblue Sandboxes: $0.165
Tenki Sandbox: $0.0504
RAM, per GiB-hour
Sendblue Sandboxes: Included
Tenki Sandbox: $0.0162
Storage
Sendblue Sandboxes: Not listed
Tenki Sandbox: $0.000108 per GiB-hour after 5 free GiB
Free tier
Sendblue Sandboxes: $100 free compute, once per phone number
Tenki Sandbox: $100 credit, one time
Paid plan from
Sendblue Sandboxes: Not listed
Tenki Sandbox: $200 / month
Billing
Sendblue Sandboxes: Bundled machine time
Tenki Sandbox: Per second

Limits

Max session
Sendblue Sandboxes: Not listed
Tenki Sandbox: Not listed
Idle stop
Sendblue Sandboxes: After 10 minutes
Tenki Sandbox: Not listed
Largest sandbox
Sendblue Sandboxes: 2 vCPU · 8 GiB
Tenki Sandbox: 16 vCPU · 64 GiB
Concurrent sandboxes
Sendblue Sandboxes: Up to 5
Tenki Sandbox: Up to 100

Platform

Isolation
Sendblue Sandboxes: Container
Tenki Sandbox: Full VM
GPU
Sendblue Sandboxes: Not listed
Tenki Sandbox: Not listed
Snapshots
Sendblue Sandboxes: Not listed
Tenki Sandbox:
Pause and resume
Sendblue Sandboxes: No
Tenki Sandbox:

Developer

SDKs
Sendblue Sandboxes: Not listed
Tenki Sandbox: Python, TypeScript, Go
Integrations
Sendblue Sandboxes: Not listed
Tenki Sandbox: MCP, Claude Code

Trust

License
Sendblue Sandboxes: Not listed
Tenki Sandbox: Not listed
BYOC
Sendblue Sandboxes: Not listed
Tenki Sandbox: Not listed

Hourly cost

One sandbox running for one hour

Sendblue Sandboxes
Tenki Sandbox
1 vCPU · 2 GiB
Sendblue Sandboxes: $0.165
Tenki Sandbox: $0.083
2 vCPU · 4 GiB
Sendblue Sandboxes: $0.330
Tenki Sandbox: $0.166
4 vCPU · 8 GiB
Sendblue Sandboxes: $0.660
Tenki Sandbox: $0.331

Compute only, at list rates.

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Which one fits

Based on the fields above

Tenki Sandbox fits when

  • You want each sandbox to be a full VM.
  • You use MCP or Claude Code.
  • You want the lower list price: $0.166 against $0.330 an hour for 2 vCPU and 4 GiB.
  • You need snapshots.

More comparisons

See all comparisons

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