Modal vs Watasu

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

Updated Oct 15, 2026

Modal

Serverless compute with sandboxes and GPUs.

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

Visit site Modal profile

Watasu

Isolated Linux sandboxes for AI agents, hosted in the EU.

Isolation: Not listed
Free tier: Free Basic plan
Max session: 24 hours

Visit site Watasu profile

What is different

1 field differs. The rest are the same or not listed.

Field

Modal

Watasu

Free tier: Modal: $30 credit every month; Watasu: Free Basic plan

Full comparison

18 fields, at each provider's list price

Modalmodal.com/pricing

Watasuwatasu.io/pricing

Pricing

vCPU, per hour: Modal: $0.070956; Watasu: Not listed
RAM, per GiB-hour: Modal: $0.024012; Watasu: Not listed
Storage: Modal: Not listed; Watasu: Retained disks €0.10 per GiB per month while the sandbox is stopped. Checkpoints and templates €0.03 per GiB per month.
Free tier: Modal: $30 credit every month; Watasu: Free Basic plan
Paid plan from: Modal: Pay as you go; Watasu: Not listed
Billing: Modal: Per second; Watasu: Per second

Limits

Max session: Modal: 24 hours; Watasu: 24 hours
Idle stop: Modal: Not listed; Watasu: Not listed
Largest sandbox: Modal: Not listed; Watasu: 8 vCPU · 8 GiB
Concurrent sandboxes: Modal: Not listed; Watasu: Up to 100

Platform

Isolation: Modal: gVisor; Watasu: Not listed
GPU: Modal:; Watasu: Not listed
Snapshots: Modal:; Watasu:
Pause and resume: Modal: Not listed; Watasu:

Developer

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

Trust

License: Modal: Not listed; Watasu: Not listed
BYOC: Modal: Not listed; Watasu: Not listed

Hourly cost

One sandbox running for one hour

Size

Modal

Watasu

1 vCPU · 2 GiB: Modal: $0.119; Watasu: Not listed
2 vCPU · 4 GiB: Modal: $0.238; Watasu: Not listed
4 vCPU · 8 GiB: Modal: $0.476; Watasu: Not listed

Compute only, at list rates.

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Which one fits

Based on the fields above

Modal fits when

You need GPUs.
You use the Claude Agent SDK or Claude Code.
You need a desktop in the sandbox.
You need SOC 2 Type II, HIPAA and GDPR.

Watasu fits when

You need pause and resume.

More comparisons

See all comparisons

Modal

Watasu

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Modal fits when

Watasu fits when

More comparisons

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