Brimble Sandboxes vs Sailboxes

Sailboxes costs $0.015 per vCPU-hour. Brimble Sandboxes runs gVisor and limits a session to 6 hours. Sailboxes runs full VMs and has no session limit.

Updated Oct 23, 2026

Brimble Sandboxes

Sandbox product of the Brimble hosting platform that runs code in gVisor containers.

Isolation: gVisor
Free tier: 7-day Developer plan trial, card required
Max session: 6 hours

Visit site Brimble Sandboxes profile

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

What is different

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

Field

Brimble Sandboxes

Sailboxes

Storage: Brimble Sandboxes: Snapshot storage and persistent volumes bill at storage rates; Sailboxes: $0.0007 per GiB-hour
Free tier: Brimble Sandboxes: 7-day Developer plan trial, card required; Sailboxes: $5 credit every month
Paid plan from: Brimble Sandboxes: $3 / month; Sailboxes: Pay as you go
Max session: Brimble Sandboxes: 6 hours; Sailboxes: No limit
Largest sandbox: Brimble Sandboxes: 4 vCPU · 8 GiB; Sailboxes: 8 vCPU · 256 GiB
Concurrent sandboxes: Brimble Sandboxes: Up to 15; Sailboxes: Up to 5,000
Isolation: Brimble Sandboxes: gVisor; Sailboxes: Full VM
SDKs: Brimble Sandboxes: JavaScript / TypeScript, Python, Go; Sailboxes: Python, TypeScript, Rust
Integrations: Brimble Sandboxes: MCP, Claude Code; Sailboxes: Claude Code

Full comparison

18 fields, at each provider's list price

Brimble Sandboxesbrimble.io/pricing

Sailboxesdocs.sailresearch.com/pricingdocs.sailresearch.com

Pricing

vCPU, per hour: Brimble Sandboxes: Not listed; Sailboxes: $0.015
RAM, per GiB-hour: Brimble Sandboxes: Not listed; Sailboxes: $0.008
Storage: Brimble Sandboxes: Snapshot storage and persistent volumes bill at storage rates; Sailboxes: $0.0007 per GiB-hour
Free tier: Brimble Sandboxes: 7-day Developer plan trial, card required; Sailboxes: $5 credit every month
Paid plan from: Brimble Sandboxes: $3 / month; Sailboxes: Pay as you go
Billing: Brimble Sandboxes: Per second; Sailboxes: Per second

Limits

Max session: Brimble Sandboxes: 6 hours; Sailboxes: No limit
Idle stop: Brimble Sandboxes: Not listed; Sailboxes: Not listed
Largest sandbox: Brimble Sandboxes: 4 vCPU · 8 GiB; Sailboxes: 8 vCPU · 256 GiB
Concurrent sandboxes: Brimble Sandboxes: Up to 15; Sailboxes: Up to 5,000

Platform

Isolation: Brimble Sandboxes: gVisor; Sailboxes: Full VM
GPU: Brimble Sandboxes: Not listed; Sailboxes: Not listed
Snapshots: Brimble Sandboxes:; Sailboxes:
Pause and resume: Brimble Sandboxes:; Sailboxes:

Developer

SDKs: Brimble Sandboxes: JavaScript / TypeScript, Python, Go; Sailboxes: Python, TypeScript, Rust
Integrations: Brimble Sandboxes: MCP, Claude Code; Sailboxes: Claude Code

Trust

License: Brimble Sandboxes: Not listed; Sailboxes: Not listed
BYOC: Brimble Sandboxes: Not listed; Sailboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

Brimble Sandboxes

Sailboxes

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

Compute only, at list rates.

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Which one fits

Based on the fields above

Brimble Sandboxes fits when

You use MCP.

Sailboxes fits when

A session must run longer than 6 hours.
You want to pay only for usage, with no plan fee.
You want each sandbox to be a full VM.
You need a sandbox larger than 4 vCPU · 8 GiB.

More comparisons

See all comparisons

Brimble Sandboxes

Sailboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Brimble Sandboxes fits when

Sailboxes fits when

More comparisons

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