HopX vs Sailboxes

HopX costs $0.0504 per vCPU-hour and Sailboxes costs $0.015 per vCPU-hour. HopX runs Firecracker microVMs and has no session limit. Sailboxes runs full VMs and has no session limit.

Updated Oct 14, 2026

HopX

Firecracker microVM sandboxes for AI agents.

Isolation: Firecracker microVM
Free tier: $200 credit
Max session: No limit

Visit site HopX 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

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

Field

HopX

Sailboxes

vCPU, per hour: HopX: $0.0504; Sailboxes: $0.015
RAM, per GiB-hour: HopX: $0.0162; Sailboxes: $0.008
Storage: HopX: $0.000108 per GiB-hour; Sailboxes: $0.0007 per GiB-hour
Free tier: HopX: $200 credit; Sailboxes: $5 credit every month
Isolation: HopX: Firecracker microVM; Sailboxes: Full VM
SDKs: HopX: Python, JavaScript; Sailboxes: Python, TypeScript, Rust

Full comparison

18 fields, at each provider's list price

HopXhopx.ai/pricing

Sailboxesdocs.sailresearch.com/sailboxes-pricingdocs.sailresearch.com

Pricing

vCPU, per hour: HopX: $0.0504; Sailboxes: $0.015
RAM, per GiB-hour: HopX: $0.0162; Sailboxes: $0.008
Storage: HopX: $0.000108 per GiB-hour; Sailboxes: $0.0007 per GiB-hour
Free tier: HopX: $200 credit; Sailboxes: $5 credit every month
Paid plan from: HopX: Pay as you go; Sailboxes: Pay as you go
Billing: HopX: Per second; Sailboxes: Per second

Limits

Max session: HopX: No limit; Sailboxes: No limit
Idle stop: HopX: Not listed; Sailboxes: Not listed
Largest sandbox: HopX: Not listed; Sailboxes: Not listed
Concurrent sandboxes: HopX: Not listed; Sailboxes: Up to 5,000

Platform

Isolation: HopX: Firecracker microVM; Sailboxes: Full VM
GPU: HopX: Not listed; Sailboxes: Not listed
Snapshots: HopX: Not listed; Sailboxes:
Pause and resume: HopX:; Sailboxes:

Developer

SDKs: HopX: Python, JavaScript; Sailboxes: Python, TypeScript, Rust
Integrations: HopX: MCP; Sailboxes: Not listed

Trust

License: HopX: Not listed; Sailboxes: Not listed
BYOC: HopX: Not listed; Sailboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

HopX

Sailboxes

1 vCPU · 2 GiB: HopX: $0.083; Sailboxes: $0.031
2 vCPU · 4 GiB: HopX: $0.166; Sailboxes: $0.062
4 vCPU · 8 GiB: HopX: $0.331; Sailboxes: $0.124

Compute only, at list rates.

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Which one fits

Based on the fields above

HopX fits when

You want each sandbox in its own microVM.
You use MCP.
You want the larger free credit: $200 against $5.
You need a desktop in the sandbox.

Sailboxes fits when

You want each sandbox to be a full VM.
You want the lower list price: $0.062 against $0.166 an hour for 2 vCPU and 4 GiB.
You need snapshots.
You need HIPAA.

More comparisons

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HopX

Sailboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

HopX fits when

Sailboxes fits when

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