Modal vs Sailboxes
Modal costs $0.070956 per vCPU-hour and Sailboxes costs $0.015 per vCPU-hour. Modal runs gVisor, offers GPUs and limits a session to 24 hours. Sailboxes runs full VMs and has no session limit.
Updated
Sailboxes
- Isolation
- Full VM
- Free tier
- $5 credit every month
- Max session
- No limit
What is different
6 fields differ. The rest are the same or not listed.
Modal
Sailboxes
- vCPU, per hour
- Modal: $0.070956
- Sailboxes: $0.015
- RAM, per GiB-hour
- Modal: $0.024012
- Sailboxes: $0.008
- Free tier
- Modal: $30 credit every month
- Sailboxes: $5 credit every month
- Max session
- Modal: 24 hours
- Sailboxes: No limit
- Isolation
- Modal: gVisor
- Sailboxes: Full VM
- SDKs
- Modal: Python, JavaScript / TypeScript, Go
- Sailboxes: Python, TypeScript, Rust
Full comparison
18 fields, at each provider's list price
Modalmodal
Sailboxesdocs
Pricing
- vCPU, per hour
- Modal: $0.070956
- Sailboxes: $0.015
- RAM, per GiB-hour
- Modal: $0.024012
- Sailboxes: $0.008
- Storage
- Modal: Not listed
- Sailboxes: $0.0007 per GiB-hour
- Free tier
- Modal: $30 credit every month
- Sailboxes: $5 credit every month
- Paid plan from
- Modal: Pay as you go
- Sailboxes: Pay as you go
- Billing
- Modal: Per second
- Sailboxes: Per second
Limits
- Max session
- Modal: 24 hours
- Sailboxes: No limit
- Idle stop
- Modal: Not listed
- Sailboxes: Not listed
- Largest sandbox
- Modal: Not listed
- Sailboxes: Not listed
- Concurrent sandboxes
- Modal: Not listed
- Sailboxes: Up to 5,000
Platform
- Isolation
- Modal: gVisor
- Sailboxes: Full VM
- GPU
- Modal:
- Sailboxes: Not listed
- Snapshots
- Modal:
- Sailboxes:
- Pause and resume
- Modal: Not listed
- Sailboxes:
Developer
- SDKs
- Modal: Python, JavaScript / TypeScript, Go
- Sailboxes: Python, TypeScript, Rust
- Integrations
- Modal: Claude Agent SDK
- Sailboxes: Not listed
Trust
- License
- Modal: Not listed
- Sailboxes: Not listed
- BYOC
- Modal: Not listed
- Sailboxes: Not listed
Hourly cost
One sandbox running for one hour
Modal
Sailboxes
- 1 vCPU · 2 GiB
- Modal: $0.119
- Sailboxes: $0.031
- 2 vCPU · 4 GiB
- Modal: $0.238
- Sailboxes: $0.062
- 4 vCPU · 8 GiB
- Modal: $0.476
- Sailboxes: $0.124
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Modal fits when
- You need GPUs.
- You use the Claude Agent SDK.
- You want the larger free credit: $30 against $5.
- You need a desktop in the sandbox.
Sailboxes fits when
- A session must run longer than 24 hours.
- You want each sandbox to be a full VM.
- You want the lower list price: $0.062 against $0.238 an hour for 2 vCPU and 4 GiB.
- You need pause and resume.
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