Prime Sandboxes vs Sendblue Sandboxes

Prime Sandboxes costs $0.02 per vCPU-hour and Sendblue Sandboxes costs $0.165 per vCPU-hour. Prime Sandboxes runs microVMs and has no session limit. Sendblue Sandboxes runs containers.

Updated Oct 15, 2026

Prime Sandboxes

Isolated microVM sandboxes for AI agents and RL.

Isolation: MicroVM
Free tier: Not listed
Max session: No limit

Visit site Prime Sandboxes profile

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

What is different

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

Field

Prime Sandboxes

Sendblue Sandboxes

vCPU, per hour: Prime Sandboxes: $0.02; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: Prime Sandboxes: $0.0125; Sendblue Sandboxes: Included
Billing: Prime Sandboxes: Per second; Sendblue Sandboxes: Bundled machine time
Largest sandbox: Prime Sandboxes: 16 vCPU · 64 GiB; Sendblue Sandboxes: 2 vCPU · 8 GiB
Concurrent sandboxes: Prime Sandboxes: Up to 1,024; Sendblue Sandboxes: Up to 5
Isolation: Prime Sandboxes: MicroVM; Sendblue Sandboxes: Container

Full comparison

18 fields, at each provider's list price

Prime Sandboxesdocs.primeintellect.ai/sandboxes/overviewdocs.primeintellect.ai

Sendblue Sandboxessendblue.com/sandboxessendblue.com

Pricing

vCPU, per hour: Prime Sandboxes: $0.02; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: Prime Sandboxes: $0.0125; Sendblue Sandboxes: Included
Storage: Prime Sandboxes: $0.0002 per GiB-hour; Sendblue Sandboxes: Not listed
Free tier: Prime Sandboxes: Not listed; Sendblue Sandboxes: $100 free compute, once per phone number
Paid plan from: Prime Sandboxes: Pay as you go; Sendblue Sandboxes: Not listed
Billing: Prime Sandboxes: Per second; Sendblue Sandboxes: Bundled machine time

Limits

Max session: Prime Sandboxes: No limit; Sendblue Sandboxes: Not listed
Idle stop: Prime Sandboxes: Not listed; Sendblue Sandboxes: After 10 minutes
Largest sandbox: Prime Sandboxes: 16 vCPU · 64 GiB; Sendblue Sandboxes: 2 vCPU · 8 GiB
Concurrent sandboxes: Prime Sandboxes: Up to 1,024; Sendblue Sandboxes: Up to 5

Platform

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

Developer

SDKs: Prime Sandboxes: Python; Sendblue Sandboxes: Not listed
Integrations: Prime Sandboxes: Not listed; Sendblue Sandboxes: Not listed

Trust

License: Prime Sandboxes: Not listed; Sendblue Sandboxes: Not listed
BYOC: Prime Sandboxes: Not listed; Sendblue Sandboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

Prime Sandboxes

Sendblue Sandboxes

1 vCPU · 2 GiB: Prime Sandboxes: $0.045; Sendblue Sandboxes: $0.165
2 vCPU · 4 GiB: Prime Sandboxes: $0.090; Sendblue Sandboxes: $0.330
4 vCPU · 8 GiB: Prime Sandboxes: $0.180; Sendblue Sandboxes: $0.660

Compute only, at list rates.

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Which one fits

Based on the fields above

Prime Sandboxes fits when

You want each sandbox in its own microVM.
You want the lower list price: $0.090 against $0.330 an hour for 2 vCPU and 4 GiB.
You need snapshots.
You need a sandbox larger than 2 vCPU · 8 GiB.

More comparisons

See all comparisons

Prime Sandboxes

Sendblue Sandboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Prime Sandboxes fits when

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