Upstash Box vs Watasu

Upstash Box costs $0.10 per vCPU-hour. Upstash Box runs containers. Watasu limits a session to 24 hours.

Updated Oct 15, 2026

Upstash Box

Isolated cloud containers that give AI agents a computer.

Isolation: Container
Free tier: Free plan, 5 CPU hours per month
Max session: Not listed

Visit site Upstash Box 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

Upstash Box

Watasu

Storage: Upstash Box: $0.10 per GB per month, including snapshots. Included on Fixed.; 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: Upstash Box: Free plan, 5 CPU hours per month; Watasu: Free Basic plan
Billing: Upstash Box: Active CPU time only; Watasu: Per second
Largest sandbox: Upstash Box: 8 vCPU · 16 GiB; Watasu: 8 vCPU · 8 GiB
Concurrent sandboxes: Upstash Box: Up to 1,000; Watasu: Up to 100

Full comparison

18 fields, at each provider's list price

Upstash Boxupstash.com/pricing/boxupstash.com

Watasuwatasu.io/pricing

Pricing

vCPU, per hour: Upstash Box: $0.10; Watasu: Not listed
RAM, per GiB-hour: Upstash Box: Included; Watasu: Not listed
Storage: Upstash Box: $0.10 per GB per month, including snapshots. Included on Fixed.; 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: Upstash Box: Free plan, 5 CPU hours per month; Watasu: Free Basic plan
Paid plan from: Upstash Box: Pay as you go; Watasu: Not listed
Billing: Upstash Box: Active CPU time only; Watasu: Per second

Limits

Max session: Upstash Box: Not listed; Watasu: 24 hours
Idle stop: Upstash Box: After 360 minutes; Watasu: Not listed
Largest sandbox: Upstash Box: 8 vCPU · 16 GiB; Watasu: 8 vCPU · 8 GiB
Concurrent sandboxes: Upstash Box: Up to 1,000; Watasu: Up to 100

Platform

Isolation: Upstash Box: Container; Watasu: Not listed
GPU: Upstash Box: Not listed; Watasu: Not listed
Snapshots: Upstash Box:; Watasu:
Pause and resume: Upstash Box:; Watasu:

Developer

SDKs: Upstash Box: Python, TypeScript; Watasu: Not listed
Integrations: Upstash Box: LangChain, Vercel AI SDK, Claude Code, MCP; Watasu: Not listed

Trust

License: Upstash Box: Not listed; Watasu: Not listed
BYOC: Upstash Box: Not listed; Watasu: Not listed

Hourly cost

One sandbox running for one hour

Size

Upstash Box

Watasu

1 vCPU · 2 GiB: Upstash Box: $0.100; Watasu: Not listed
2 vCPU · 4 GiB: Upstash Box: $0.200; Watasu: Not listed
4 vCPU · 8 GiB: Upstash Box: $0.400; Watasu: Not listed

Compute only, at list rates.

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Which one fits

Based on the fields above

Upstash Box fits when

You use LangChain, the Vercel AI SDK, Claude Code or MCP.
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

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Upstash Box

Watasu

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

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