Blaxel vs Sailboxes

Blaxel bills memory only, at $0.0414 per GiB-hour. Sailboxes costs $0.015 per vCPU-hour. Blaxel runs microVMs and has no session limit. Sailboxes runs full VMs and has no session limit.

Updated Oct 14, 2026

Blaxel

Sandboxes that pause when idle and resume with state.

Isolation: MicroVM
Free tier: Credit of up to $200
Max session: No limit

Visit site Blaxel 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

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

Field

Blaxel

Sailboxes

vCPU, per hour: Blaxel: Included; Sailboxes: $0.015
RAM, per GiB-hour: Blaxel: $0.0414; Sailboxes: $0.008
Storage: Blaxel: Snapshots $0.20 per GB per month. Volumes $0.12 per GB per month.; Sailboxes: $0.0007 per GiB-hour
Free tier: Blaxel: Credit of up to $200; Sailboxes: $5 credit every month
Billing: Blaxel: Memory only; Sailboxes: Per second
Isolation: Blaxel: MicroVM; Sailboxes: Full VM
SDKs: Blaxel: Python, TypeScript, Go; Sailboxes: Python, TypeScript, Rust

Full comparison

18 fields, at each provider's list price

Blaxelblaxel.ai/pricing

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

Pricing

vCPU, per hour: Blaxel: Included; Sailboxes: $0.015
RAM, per GiB-hour: Blaxel: $0.0414; Sailboxes: $0.008
Storage: Blaxel: Snapshots $0.20 per GB per month. Volumes $0.12 per GB per month.; Sailboxes: $0.0007 per GiB-hour
Free tier: Blaxel: Credit of up to $200; Sailboxes: $5 credit every month
Paid plan from: Blaxel: Pay as you go; Sailboxes: Pay as you go
Billing: Blaxel: Memory only; Sailboxes: Per second

Limits

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

Platform

Isolation: Blaxel: MicroVM; Sailboxes: Full VM
GPU: Blaxel: Not listed; Sailboxes: Not listed
Snapshots: Blaxel:; Sailboxes:
Pause and resume: Blaxel:; Sailboxes:

Developer

SDKs: Blaxel: Python, TypeScript, Go; Sailboxes: Python, TypeScript, Rust
Integrations: Blaxel: OpenAI Agents SDK, Claude Agent SDK, MCP; Sailboxes: Not listed

Trust

License: Blaxel: Not listed; Sailboxes: Not listed
BYOC: Blaxel: Bring-your-own-metal in your VPC; Sailboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

Blaxel

Sailboxes

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

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Blaxel fits when

You want each sandbox in its own microVM.
You use the OpenAI Agents SDK, the Claude Agent SDK or 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.

More comparisons

See all comparisons

Blaxel

Sailboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Blaxel fits when

Sailboxes fits when

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