DigitalOcean Harness Runtime vs Watasu

DigitalOcean Harness Runtime costs $0.044 per vCPU-hour. DigitalOcean Harness Runtime runs Firecracker microVMs. Watasu limits a session to 24 hours.

Updated Oct 15, 2026

DigitalOcean Harness Runtime

Managed microVM sandboxes for AI agents and their code.

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

Visit site DigitalOcean Harness Runtime 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

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

Field

DigitalOcean Harness Runtime

Watasu

Storage: DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month; Watasu: Retained disks €0.10 per GiB per month while the sandbox is stopped. Checkpoints and templates €0.03 per GiB per month.
Billing: DigitalOcean Harness Runtime: Active CPU time only; Watasu: Per second
Largest sandbox: DigitalOcean Harness Runtime: 16 vCPU · 32 GiB; Watasu: 8 vCPU · 8 GiB

Full comparison

18 fields, at each provider's list price

DigitalOcean Harness Runtimedigitalocean.com/pricing/harness-runtimedigitalocean.com

Watasuwatasu.io/pricing

Pricing

vCPU, per hour: DigitalOcean Harness Runtime: $0.044; Watasu: Not listed
RAM, per GiB-hour: DigitalOcean Harness Runtime: $0.0095; Watasu: Not listed
Storage: DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month; 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: DigitalOcean Harness Runtime: Not listed; Watasu: Free Basic plan
Paid plan from: DigitalOcean Harness Runtime: Pay as you go; Watasu: Not listed
Billing: DigitalOcean Harness Runtime: Active CPU time only; Watasu: Per second

Limits

Max session: DigitalOcean Harness Runtime: Not listed; Watasu: 24 hours
Idle stop: DigitalOcean Harness Runtime: After 15 minutes; Watasu: Not listed
Largest sandbox: DigitalOcean Harness Runtime: 16 vCPU · 32 GiB; Watasu: 8 vCPU · 8 GiB
Concurrent sandboxes: DigitalOcean Harness Runtime: Up to 100; Watasu: Up to 100

Platform

Isolation: DigitalOcean Harness Runtime: Firecracker microVM; Watasu: Not listed
GPU: DigitalOcean Harness Runtime: Not listed; Watasu: Not listed
Snapshots: DigitalOcean Harness Runtime:; Watasu:
Pause and resume: DigitalOcean Harness Runtime:; Watasu:

Developer

SDKs: DigitalOcean Harness Runtime: Python; Watasu: Not listed
Integrations: DigitalOcean Harness Runtime: Claude Code; Watasu: Not listed

Trust

License: DigitalOcean Harness Runtime: Not listed; Watasu: Not listed
BYOC: DigitalOcean Harness Runtime: Not listed; Watasu: Not listed

Hourly cost

One sandbox running for one hour

Size

DigitalOcean Harness Runtime

Watasu

1 vCPU · 2 GiB: DigitalOcean Harness Runtime: $0.063; Watasu: Not listed
2 vCPU · 4 GiB: DigitalOcean Harness Runtime: $0.126; Watasu: Not listed
4 vCPU · 8 GiB: DigitalOcean Harness Runtime: $0.252; Watasu: Not listed

Compute only, at list rates.

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Which one fits

Based on the fields above

DigitalOcean Harness Runtime fits when

You use Claude Code.
Your code waits a lot: CPU is billed only while it is in use.
You need a sandbox larger than 8 vCPU · 8 GiB.

More comparisons

See all comparisons

DigitalOcean Harness Runtime

Watasu

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

DigitalOcean Harness Runtime fits when

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