Railway Sandboxes vs Runtime

Railway Sandboxes costs $0.069444 per vCPU-hour and Runtime costs $0.025 per vCPU-hour. Railway Sandboxes runs full VMs and has no session limit. Runtime runs Firecracker microVMs and has no session limit.

Updated

Railway Sandboxes

Isolation
Full VM
Free tier
$5 trial credit for 30 days
Max session
No limit

Runtime

Isolation
Firecracker microVM
Free tier
100 hours of a 1 GB machine in the first 30 days
Max session
No limit

What is different

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

Railway Sandboxes
Runtime
vCPU, per hour
Railway Sandboxes: $0.069444
Runtime: $0.025
RAM, per GiB-hour
Railway Sandboxes: $0.069444
Runtime: $0.0075
Free tier
Railway Sandboxes: $5 trial credit for 30 days
Runtime: 100 hours of a 1 GB machine in the first 30 days
Paid plan from
Railway Sandboxes: $5 / month
Runtime: Pay as you go
Idle stop
Railway Sandboxes: After 30 minutes
Runtime: After 5 minutes
Largest sandbox
Railway Sandboxes: 32 vCPU · 32 GiB
Runtime: 16 vCPU · 64 GiB
Concurrent sandboxes
Railway Sandboxes: Up to 100
Runtime: Up to 200
Isolation
Railway Sandboxes: Full VM
Runtime: Firecracker microVM
SDKs
Railway Sandboxes: TypeScript
Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations
Railway Sandboxes: Claude Code
Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Railway Sandboxes: $0.069444
Runtime: $0.025
RAM, per GiB-hour
Railway Sandboxes: $0.069444
Runtime: $0.0075
Storage
Railway Sandboxes: Not listed
Runtime: $0.000119 per GiB-hour after 10 free GiB
Free tier
Railway Sandboxes: $5 trial credit for 30 days
Runtime: 100 hours of a 1 GB machine in the first 30 days
Paid plan from
Railway Sandboxes: $5 / month
Runtime: Pay as you go
Billing
Railway Sandboxes: Active CPU time only
Runtime: Active CPU time only

Limits

Max session
Railway Sandboxes: No limit
Runtime: No limit
Idle stop
Railway Sandboxes: After 30 minutes
Runtime: After 5 minutes
Largest sandbox
Railway Sandboxes: 32 vCPU · 32 GiB
Runtime: 16 vCPU · 64 GiB
Concurrent sandboxes
Railway Sandboxes: Up to 100
Runtime: Up to 200

Platform

Isolation
Railway Sandboxes: Full VM
Runtime: Firecracker microVM
GPU
Railway Sandboxes: Not listed
Runtime: No
Snapshots
Railway Sandboxes:
Runtime:
Pause and resume
Railway Sandboxes: Not listed
Runtime:

Developer

SDKs
Railway Sandboxes: TypeScript
Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations
Railway Sandboxes: Claude Code
Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Trust

License
Railway Sandboxes: Not listed
Runtime: Not listed
BYOC
Railway Sandboxes: Not listed
Runtime: Not listed

Hourly cost

One sandbox running for one hour

Railway Sandboxes
Runtime
1 vCPU · 2 GiB
Railway Sandboxes: $0.208
Runtime: $0.040
2 vCPU · 4 GiB
Railway Sandboxes: $0.417
Runtime: $0.080
4 vCPU · 8 GiB
Railway Sandboxes: $0.833
Runtime: $0.160

Compute only, at list rates.

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Which one fits

Based on the fields above

Railway Sandboxes fits when

  • You want each sandbox to be a full VM.
  • You need SOC 2 Type II, HIPAA and GDPR.

Runtime fits when

  • You want to pay only for usage, with no plan fee.
  • You want each sandbox in its own microVM.
  • You use the OpenAI Agents SDK, the Vercel AI SDK, the Claude Agent SDK, LangChain or MCP.
  • You want the lower list price: $0.080 against $0.417 an hour for 2 vCPU and 4 GiB.

More comparisons

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