Sailboxes vs xShellz Agent Shell

Sailboxes costs $0.015 per vCPU-hour. Sailboxes runs full VMs and has no session limit. xShellz Agent Shell runs gVisor and has no session limit.

Updated Oct 23, 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

xShellz Agent Shell

Always-on Linux boxes for AI agents, isolated with gVisor.

Isolation: gVisor
Free tier: Free plan, 1 box with 0.5 vCPU and 512 MB
Max session: No limit

Visit site xShellz Agent Shell profile

What is different

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

Field

Sailboxes

xShellz Agent Shell

RAM, per GiB-hour: Sailboxes: $0.008; xShellz Agent Shell: Included
Storage: Sailboxes: $0.0007 per GiB-hour; xShellz Agent Shell: Free
Free tier: Sailboxes: $5 credit every month; xShellz Agent Shell: Free plan, 1 box with 0.5 vCPU and 512 MB
Paid plan from: Sailboxes: Pay as you go; xShellz Agent Shell: $10 / month
Billing: Sailboxes: Per second; xShellz Agent Shell: Bundled machine time
Largest sandbox: Sailboxes: 8 vCPU · 256 GiB; xShellz Agent Shell: 4 vCPU · 4 GiB
Concurrent sandboxes: Sailboxes: Up to 5,000; xShellz Agent Shell: Up to 5
Isolation: Sailboxes: Full VM; xShellz Agent Shell: gVisor
SDKs: Sailboxes: Python, TypeScript, Rust; xShellz Agent Shell: Python, JavaScript / TypeScript, Go, Java, Ruby, Rust
Integrations: Sailboxes: Claude Code; xShellz Agent Shell: MCP, Claude Code

Full comparison

18 fields, at each provider's list price

Sailboxesdocs.sailresearch.com/pricingdocs.sailresearch.com

xShellz Agent Shellxshellz.com/pricingxshellz.com

Pricing

vCPU, per hour: Sailboxes: $0.015; xShellz Agent Shell: Not listed
RAM, per GiB-hour: Sailboxes: $0.008; xShellz Agent Shell: Included
Storage: Sailboxes: $0.0007 per GiB-hour; xShellz Agent Shell: Free
Free tier: Sailboxes: $5 credit every month; xShellz Agent Shell: Free plan, 1 box with 0.5 vCPU and 512 MB
Paid plan from: Sailboxes: Pay as you go; xShellz Agent Shell: $10 / month
Billing: Sailboxes: Per second; xShellz Agent Shell: Bundled machine time

Limits

Max session: Sailboxes: No limit; xShellz Agent Shell: No limit
Idle stop: Sailboxes: Not listed; xShellz Agent Shell: Not listed
Largest sandbox: Sailboxes: 8 vCPU · 256 GiB; xShellz Agent Shell: 4 vCPU · 4 GiB
Concurrent sandboxes: Sailboxes: Up to 5,000; xShellz Agent Shell: Up to 5

Platform

Isolation: Sailboxes: Full VM; xShellz Agent Shell: gVisor
GPU: Sailboxes: Not listed; xShellz Agent Shell: Not listed
Snapshots: Sailboxes:; xShellz Agent Shell: Not listed
Pause and resume: Sailboxes:; xShellz Agent Shell:

Developer

SDKs: Sailboxes: Python, TypeScript, Rust; xShellz Agent Shell: Python, JavaScript / TypeScript, Go, Java, Ruby, Rust
Integrations: Sailboxes: Claude Code; xShellz Agent Shell: MCP, Claude Code

Trust

License: Sailboxes: Not listed; xShellz Agent Shell: Not listed
BYOC: Sailboxes: Not listed; xShellz Agent Shell: Not listed

Hourly cost

One sandbox running for one hour

Size

Sailboxes

xShellz Agent Shell

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

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Sailboxes fits when

You want to pay only for usage, with no plan fee.
You want each sandbox to be a full VM.
You need snapshots.
You need a sandbox larger than 4 vCPU · 4 GiB.

xShellz Agent Shell fits when

You use MCP.
You need GDPR.

More comparisons

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Sailboxes

xShellz Agent Shell

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Sailboxes fits when

xShellz Agent Shell fits when

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