Modal vs Railway Sandboxes
Modal costs $0.070956 per vCPU-hour and Railway Sandboxes costs $0.069444 per vCPU-hour. Modal runs gVisor, offers GPUs and limits a session to 24 hours. Railway Sandboxes runs full VMs.
Updated
Railway Sandboxes
- Isolation
- Full VM
- Free tier
- $5 trial credit for 30 days
- Max session
- Not listed
What is different
7 fields differ. The rest are the same or not listed.
Modal
Railway Sandboxes
- vCPU, per hour
- Modal: $0.070956
- Railway Sandboxes: $0.069444
- RAM, per GiB-hour
- Modal: $0.024012
- Railway Sandboxes: $0.069444
- Free tier
- Modal: $30 credit every month
- Railway Sandboxes: $5 trial credit for 30 days
- Paid plan from
- Modal: Pay as you go
- Railway Sandboxes: $5 / month
- Billing
- Modal: Per second
- Railway Sandboxes: Active CPU time only
- Isolation
- Modal: gVisor
- Railway Sandboxes: Full VM
- SDKs
- Modal: Python, JavaScript / TypeScript, Go
- Railway Sandboxes: TypeScript
Full comparison
18 fields, at each provider's list price
Modalmodal
Railway Sandboxesrailway
Pricing
- vCPU, per hour
- Modal: $0.070956
- Railway Sandboxes: $0.069444
- RAM, per GiB-hour
- Modal: $0.024012
- Railway Sandboxes: $0.069444
- Storage
- Modal: Not listed
- Railway Sandboxes: Not listed
- Free tier
- Modal: $30 credit every month
- Railway Sandboxes: $5 trial credit for 30 days
- Paid plan from
- Modal: Pay as you go
- Railway Sandboxes: $5 / month
- Billing
- Modal: Per second
- Railway Sandboxes: Active CPU time only
Limits
- Max session
- Modal: 24 hours
- Railway Sandboxes: Not listed
- Idle stop
- Modal: Not listed
- Railway Sandboxes: After 30 minutes
- Largest sandbox
- Modal: Not listed
- Railway Sandboxes: 32 vCPU · 32 GiB
- Concurrent sandboxes
- Modal: Not listed
- Railway Sandboxes: Up to 100
Platform
- Isolation
- Modal: gVisor
- Railway Sandboxes: Full VM
- GPU
- Modal:
- Railway Sandboxes: Not listed
- Snapshots
- Modal:
- Railway Sandboxes:
- Pause and resume
- Modal: Not listed
- Railway Sandboxes: Not listed
Developer
- SDKs
- Modal: Python, JavaScript / TypeScript, Go
- Railway Sandboxes: TypeScript
- Integrations
- Modal: Claude Agent SDK
- Railway Sandboxes: Not listed
Trust
- License
- Modal: Not listed
- Railway Sandboxes: Not listed
- BYOC
- Modal: Not listed
- Railway Sandboxes: Not listed
Hourly cost
One sandbox running for one hour
Modal
Railway Sandboxes
- 1 vCPU · 2 GiB
- Modal: $0.119
- Railway Sandboxes: $0.208
- 2 vCPU · 4 GiB
- Modal: $0.238
- Railway Sandboxes: $0.417
- 4 vCPU · 8 GiB
- Modal: $0.476
- Railway Sandboxes: $0.833
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Modal fits when
- You need GPUs.
- You want to pay only for usage, with no plan fee.
- You use the Claude Agent SDK.
- You want the lower list price: $0.238 against $0.417 an hour for 2 vCPU and 4 GiB.
Railway Sandboxes fits when
- You want each sandbox to be a full VM.
- Your code waits a lot: CPU is billed only while it is in use.
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