Sailboxes vs Watasu

Sailboxes costs $0.015 per vCPU-hour. Sailboxes runs full VMs and has no session limit. Watasu limits a session to 24 hours.

Updated Oct 15, 2026

Sailboxes

Persistent Linux VMs for long-horizon AI agents.

Isolation: Full VM
Free tier: $5 credit every month
Max session: No limit

Visit site Sailboxes 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

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

Field

Sailboxes

Watasu

Storage: Sailboxes: $0.0007 per GiB-hour; 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: Sailboxes: $5 credit every month; Watasu: Free Basic plan
Max session: Sailboxes: No limit; Watasu: 24 hours
Largest sandbox: Sailboxes: 8 vCPU · 256 GiB; Watasu: 8 vCPU · 8 GiB
Concurrent sandboxes: Sailboxes: Up to 5,000; Watasu: Up to 100

Full comparison

18 fields, at each provider's list price

Sailboxesdocs.sailresearch.com/pricingdocs.sailresearch.com

Watasuwatasu.io/pricing

Pricing

vCPU, per hour: Sailboxes: $0.015; Watasu: Not listed
RAM, per GiB-hour: Sailboxes: $0.008; Watasu: Not listed
Storage: Sailboxes: $0.0007 per GiB-hour; 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: Sailboxes: $5 credit every month; Watasu: Free Basic plan
Paid plan from: Sailboxes: Pay as you go; Watasu: Not listed
Billing: Sailboxes: Per second; Watasu: Per second

Limits

Max session: Sailboxes: No limit; Watasu: 24 hours
Idle stop: Sailboxes: Not listed; Watasu: Not listed
Largest sandbox: Sailboxes: 8 vCPU · 256 GiB; Watasu: 8 vCPU · 8 GiB
Concurrent sandboxes: Sailboxes: Up to 5,000; Watasu: Up to 100

Platform

Isolation: Sailboxes: Full VM; Watasu: Not listed
GPU: Sailboxes: Not listed; Watasu: Not listed
Snapshots: Sailboxes:; Watasu:
Pause and resume: Sailboxes:; Watasu:

Developer

SDKs: Sailboxes: Python, TypeScript, Rust; Watasu: Not listed
Integrations: Sailboxes: Claude Code; Watasu: Not listed

Trust

License: Sailboxes: Not listed; Watasu: Not listed
BYOC: Sailboxes: Not listed; Watasu: Not listed

Hourly cost

One sandbox running for one hour

Size

Sailboxes

Watasu

1 vCPU · 2 GiB: Sailboxes: $0.031; Watasu: Not listed
2 vCPU · 4 GiB: Sailboxes: $0.062; Watasu: Not listed
4 vCPU · 8 GiB: Sailboxes: $0.124; Watasu: Not listed

Compute only, at list rates.

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Which one fits

Based on the fields above

Sailboxes fits when

A session must run longer than 24 hours.
You use Claude Code.
You need a sandbox larger than 8 vCPU · 8 GiB.
You need SOC 2 and HIPAA.

More comparisons

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Sailboxes

Watasu

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Sailboxes fits when

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