Koyeb Sandboxes vs Modal

Koyeb Sandboxes costs $0.0144 per vCPU-hour and Modal costs $0.070956 per vCPU-hour. Koyeb Sandboxes runs microVMs. Modal runs gVisor, offers GPUs and limits a session to 24 hours.

Updated Oct 14, 2026

Koyeb Sandboxes

Sandboxes for AI agents, run as Koyeb Instances.

Isolation: MicroVM
Free tier: Not listed
Max session: Not listed

Visit site Koyeb 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

Koyeb Sandboxes

Modal

vCPU, per hour: Koyeb Sandboxes: $0.0144; Modal: $0.070956
RAM, per GiB-hour: Koyeb Sandboxes: Included; Modal: $0.024012
Billing: Koyeb Sandboxes: Bundled machine time; Modal: Per second
Isolation: Koyeb Sandboxes: MicroVM; Modal: gVisor
SDKs: Koyeb Sandboxes: Python, JavaScript; Modal: Python, JavaScript / TypeScript, Go

Full comparison

18 fields, at each provider's list price

Koyeb Sandboxeskoyeb.com/docs/reference/instanceskoyeb.com

Modalmodal.com/pricing

Pricing

vCPU, per hour: Koyeb Sandboxes: $0.0144; Modal: $0.070956
RAM, per GiB-hour: Koyeb Sandboxes: Included; Modal: $0.024012
Storage: Koyeb Sandboxes: Not listed; Modal: Not listed
Free tier: Koyeb Sandboxes: Not listed; Modal: $30 credit every month
Paid plan from: Koyeb Sandboxes: Not listed; Modal: Pay as you go
Billing: Koyeb Sandboxes: Bundled machine time; Modal: Per second

Limits

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

Platform

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

Developer

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

Trust

License: Koyeb Sandboxes: Not listed; Modal: Not listed
BYOC: Koyeb Sandboxes: Not listed; Modal: Not listed

Hourly cost

One sandbox running for one hour

Size

Koyeb Sandboxes

Modal

1 vCPU · 2 GiB: Koyeb Sandboxes: $0.014; Modal: $0.119
2 vCPU · 4 GiB: Koyeb Sandboxes: $0.029; Modal: $0.238
4 vCPU · 8 GiB: Koyeb Sandboxes: $0.058; Modal: $0.476

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Koyeb Sandboxes fits when

You want each sandbox in its own microVM.
You want the lower list price: $0.029 against $0.238 an hour for 2 vCPU and 4 GiB.

Modal fits when

You need GPUs.
You use the Claude Agent SDK or Claude Code.
You need snapshots.
You need a desktop in the sandbox.

More comparisons

See all comparisons

Koyeb Sandboxes

Modal

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Koyeb Sandboxes fits when

Modal fits when

More comparisons

Related

Compare

Pricing

Browse