Islo Sandboxes vs Modal

Islo Sandboxes costs $0.07 per vCPU-hour and Modal costs $0.070956 per vCPU-hour. Islo Sandboxes runs microVMs. Modal runs gVisor, offers GPUs and limits a session to 24 hours.

Updated Oct 14, 2026

Islo Sandboxes

Persistent microVM computers for coding agents.

Isolation: MicroVM
Free tier: Starting credit, no card required
Max session: Not listed

Visit site Islo Sandboxes profile

Modal

Serverless compute with sandboxes and GPUs.

Isolation: gVisor
Free tier: $30 credit every month
Max session: 24 hours

Visit site Modal profile

What is different

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

Field

Islo Sandboxes

Modal

vCPU, per hour: Islo Sandboxes: $0.07; Modal: $0.070956
RAM, per GiB-hour: Islo Sandboxes: $0.04; Modal: $0.024012
Free tier: Islo Sandboxes: Starting credit, no card required; Modal: $30 credit every month
Isolation: Islo Sandboxes: MicroVM; Modal: gVisor
SDKs: Islo Sandboxes: Python, TypeScript, Go; Modal: Python, JavaScript / TypeScript, Go

Full comparison

18 fields, at each provider's list price

Islo Sandboxesislo.dev/pricing

Modalmodal.com/pricing

Pricing

vCPU, per hour: Islo Sandboxes: $0.07; Modal: $0.070956
RAM, per GiB-hour: Islo Sandboxes: $0.04; Modal: $0.024012
Storage: Islo Sandboxes: $0.0007 per GiB-hour; Modal: Not listed
Free tier: Islo Sandboxes: Starting credit, no card required; Modal: $30 credit every month
Paid plan from: Islo Sandboxes: Pay as you go; Modal: Pay as you go
Billing: Islo Sandboxes: Per second; Modal: Per second

Limits

Max session: Islo Sandboxes: Not listed; Modal: 24 hours
Idle stop: Islo Sandboxes: Not listed; Modal: Not listed
Largest sandbox: Islo Sandboxes: Not listed; Modal: Not listed
Concurrent sandboxes: Islo Sandboxes: Not listed; Modal: Not listed

Platform

Isolation: Islo Sandboxes: MicroVM; Modal: gVisor
GPU: Islo Sandboxes: Not listed; Modal:
Snapshots: Islo Sandboxes:; Modal:
Pause and resume: Islo Sandboxes:; Modal: Not listed

Developer

SDKs: Islo Sandboxes: Python, TypeScript, Go; Modal: Python, JavaScript / TypeScript, Go
Integrations: Islo Sandboxes: Not listed; Modal: Claude Agent SDK

Trust

License: Islo Sandboxes: Not listed; Modal: Not listed
BYOC: Islo Sandboxes: Agent computers run in your VPC.; Modal: Not listed

Hourly cost

One sandbox running for one hour

Size

Islo Sandboxes

Modal

1 vCPU · 2 GiB: Islo Sandboxes: $0.150; Modal: $0.119
2 vCPU · 4 GiB: Islo Sandboxes: $0.300; Modal: $0.238
4 vCPU · 8 GiB: Islo Sandboxes: $0.600; Modal: $0.476

Compute only, at list rates.

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Which one fits

Based on the fields above

Islo Sandboxes fits when

You want each sandbox in its own microVM.
You need pause and resume.
You need the sandboxes in your own cloud account.

Modal fits when

You need GPUs.
You use the Claude Agent SDK.
You want the lower list price: $0.238 against $0.300 an hour for 2 vCPU and 4 GiB.
You need a desktop in the sandbox.

More comparisons

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Islo Sandboxes

Modal

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Islo Sandboxes fits when

Modal fits when

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