AWS Lambda MicroVMs vs Sendblue Sandboxes

AWS Lambda MicroVMs costs $0.0997 per vCPU-hour and Sendblue Sandboxes costs $0.165 per vCPU-hour. AWS Lambda MicroVMs runs Firecracker microVMs and limits a session to 8 hours. Sendblue Sandboxes runs containers.

Updated Oct 15, 2026

AWS Lambda MicroVMs

Serverless microVMs on AWS that suspend when idle.

Isolation: Firecracker microVM
Free tier: Not listed
Max session: 8 hours

Visit site AWS Lambda MicroVMs 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

AWS Lambda MicroVMs

Sendblue Sandboxes

vCPU, per hour: AWS Lambda MicroVMs: $0.0997; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: AWS Lambda MicroVMs: $0.0132; Sendblue Sandboxes: Included
Billing: AWS Lambda MicroVMs: Per second; Sendblue Sandboxes: Bundled machine time
Largest sandbox: AWS Lambda MicroVMs: 4 vCPU · 8 GiB; Sendblue Sandboxes: 2 vCPU · 8 GiB
Isolation: AWS Lambda MicroVMs: Firecracker microVM; Sendblue Sandboxes: Container
Pause and resume: AWS Lambda MicroVMs:; Sendblue Sandboxes: No

Full comparison

18 fields, at each provider's list price

AWS Lambda MicroVMsaws.amazon.com/lambda/pricingaws.amazon.com

Sendblue Sandboxessendblue.com/sandboxessendblue.com

Pricing

vCPU, per hour: AWS Lambda MicroVMs: $0.0997; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: AWS Lambda MicroVMs: $0.0132; Sendblue Sandboxes: Included
Storage: AWS Lambda MicroVMs: Snapshot storage $0.08 per GB-month (US East). Snapshot write $0.0038 per GB. Snapshot read $0.00155 per GB.; Sendblue Sandboxes: Not listed
Free tier: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: $100 free compute, once per phone number
Paid plan from: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: Not listed
Billing: AWS Lambda MicroVMs: Per second; Sendblue Sandboxes: Bundled machine time

Limits

Max session: AWS Lambda MicroVMs: 8 hours; Sendblue Sandboxes: Not listed
Idle stop: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: After 10 minutes
Largest sandbox: AWS Lambda MicroVMs: 4 vCPU · 8 GiB; Sendblue Sandboxes: 2 vCPU · 8 GiB
Concurrent sandboxes: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: Up to 5

Platform

Isolation: AWS Lambda MicroVMs: Firecracker microVM; Sendblue Sandboxes: Container
GPU: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: Not listed
Snapshots: AWS Lambda MicroVMs:; Sendblue Sandboxes: Not listed
Pause and resume: AWS Lambda MicroVMs:; Sendblue Sandboxes: No

Developer

SDKs: AWS Lambda MicroVMs: Python, JavaScript; Sendblue Sandboxes: Not listed
Integrations: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: Not listed

Trust

License: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: Not listed
BYOC: AWS Lambda MicroVMs: Not listed; Sendblue Sandboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

AWS Lambda MicroVMs

Sendblue Sandboxes

1 vCPU · 2 GiB: AWS Lambda MicroVMs: $0.126; Sendblue Sandboxes: $0.165
2 vCPU · 4 GiB: AWS Lambda MicroVMs: $0.252; Sendblue Sandboxes: $0.330
4 vCPU · 8 GiB: AWS Lambda MicroVMs: $0.504; Sendblue Sandboxes: $0.660

Compute only, at list rates.

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Which one fits

Based on the fields above

AWS Lambda MicroVMs fits when

You want each sandbox in its own microVM.
You want the lower list price: $0.252 against $0.330 an hour for 2 vCPU and 4 GiB.
You need snapshots.
You need pause and resume.

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AWS Lambda MicroVMs

Sendblue Sandboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

AWS Lambda MicroVMs fits when

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