Sendblue Sandboxes vs Together Sandbox

Sendblue Sandboxes costs $0.165 per vCPU-hour and Together Sandbox costs $0.0446 per vCPU-hour. Sendblue Sandboxes runs containers. Together Sandbox runs Firecracker microVMs.

Updated Oct 15, 2026

Sendblue Sandboxes

Isolated cloud Linux machines that AI agents control over an HTTP API.

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

Visit site Sendblue Sandboxes profile

Together Sandbox

Isolated runtime environments for code from AI agents.

Isolation: Firecracker microVM
Free tier: Not listed
Max session: Not listed

Visit site Together Sandbox profile

What is different

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

Field

Sendblue Sandboxes

Together Sandbox

vCPU, per hour: Sendblue Sandboxes: $0.165; Together Sandbox: $0.0446
RAM, per GiB-hour: Sendblue Sandboxes: Included; Together Sandbox: $0.0149
Largest sandbox: Sendblue Sandboxes: 2 vCPU · 8 GiB; Together Sandbox: 16 vCPU · 128 GiB
Isolation: Sendblue Sandboxes: Container; Together Sandbox: Firecracker microVM
Pause and resume: Sendblue Sandboxes: No; Together Sandbox:

Full comparison

18 fields, at each provider's list price

Sendblue Sandboxessendblue.com/sandboxessendblue.com

Together Sandboxtogether.ai/pricingtogether.ai

Pricing

vCPU, per hour: Sendblue Sandboxes: $0.165; Together Sandbox: $0.0446
RAM, per GiB-hour: Sendblue Sandboxes: Included; Together Sandbox: $0.0149
Storage: Sendblue Sandboxes: Not listed; Together Sandbox: Not listed
Free tier: Sendblue Sandboxes: $100 free compute, once per phone number; Together Sandbox: Not listed
Paid plan from: Sendblue Sandboxes: Not listed; Together Sandbox: Not listed
Billing: Sendblue Sandboxes: Bundled machine time; Together Sandbox: Not listed

Limits

Max session: Sendblue Sandboxes: Not listed; Together Sandbox: Not listed
Idle stop: Sendblue Sandboxes: After 10 minutes; Together Sandbox: Not listed
Largest sandbox: Sendblue Sandboxes: 2 vCPU · 8 GiB; Together Sandbox: 16 vCPU · 128 GiB
Concurrent sandboxes: Sendblue Sandboxes: Up to 5; Together Sandbox: Not listed

Platform

Isolation: Sendblue Sandboxes: Container; Together Sandbox: Firecracker microVM
GPU: Sendblue Sandboxes: Not listed; Together Sandbox: Not listed
Snapshots: Sendblue Sandboxes: Not listed; Together Sandbox:
Pause and resume: Sendblue Sandboxes: No; Together Sandbox:

Developer

SDKs: Sendblue Sandboxes: Not listed; Together Sandbox: Python, TypeScript
Integrations: Sendblue Sandboxes: Not listed; Together Sandbox: Not listed

Trust

License: Sendblue Sandboxes: Not listed; Together Sandbox: Not listed
BYOC: Sendblue Sandboxes: Not listed; Together Sandbox: Not listed

Hourly cost

One sandbox running for one hour

Size

Sendblue Sandboxes

Together Sandbox

1 vCPU · 2 GiB: Sendblue Sandboxes: $0.165; Together Sandbox: $0.074
2 vCPU · 4 GiB: Sendblue Sandboxes: $0.330; Together Sandbox: $0.149
4 vCPU · 8 GiB: Sendblue Sandboxes: $0.660; Together Sandbox: $0.298

Compute only, at list rates.

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Which one fits

Based on the fields above

Together Sandbox fits when

You want each sandbox in its own microVM.
You want the lower list price: $0.149 against $0.330 an hour for 2 vCPU and 4 GiB.
You need snapshots.
You need pause and resume.

More comparisons

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Sendblue Sandboxes

Together Sandbox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Together Sandbox fits when

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