Railway Sandboxes vs Zipbox
Railway Sandboxes costs $0.069444 per vCPU-hour and Zipbox costs $0.00685 per vCPU-hour. Railway Sandboxes runs full VMs and has no session limit. Zipbox 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
Zipbox
- Isolation
- Firecracker microVM
- Free tier
- $25 credit after a one-time $5 top-up
- Max session
- No limit
What is different
10 fields differ. The rest are the same or not listed.
Railway Sandboxes
Zipbox
- vCPU, per hour
- Railway Sandboxes: $0.069444
- Zipbox: $0.00685
- RAM, per GiB-hour
- Railway Sandboxes: $0.069444
- Zipbox: Included
- Free tier
- Railway Sandboxes: $5 trial credit for 30 days
- Zipbox: $25 credit after a one-time $5 top-up
- Paid plan from
- Railway Sandboxes: $5 / month
- Zipbox: Pay as you go
- Billing
- Railway Sandboxes: Active CPU time only
- Zipbox: Bundled machine time
- Largest sandbox
- Railway Sandboxes: 32 vCPU · 32 GiB
- Zipbox: 6 vCPU · 16 GiB
- Isolation
- Railway Sandboxes: Full VM
- Zipbox: Firecracker microVM
- Snapshots
- Railway Sandboxes:
- Zipbox: No
- SDKs
- Railway Sandboxes: TypeScript
- Zipbox: TypeScript, Python, Go, Rust
- Integrations
- Railway Sandboxes: Claude Code
- Zipbox: MCP, Claude Code, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK, LangChain
Full comparison
18 fields, at each provider's list price
Railway Sandboxesrailway
Zipboxzipbox
Pricing
- vCPU, per hour
- Railway Sandboxes: $0.069444
- Zipbox: $0.00685
- RAM, per GiB-hour
- Railway Sandboxes: $0.069444
- Zipbox: Included
- Storage
- Railway Sandboxes: Not listed
- Zipbox: Free
- Free tier
- Railway Sandboxes: $5 trial credit for 30 days
- Zipbox: $25 credit after a one-time $5 top-up
- Paid plan from
- Railway Sandboxes: $5 / month
- Zipbox: Pay as you go
- Billing
- Railway Sandboxes: Active CPU time only
- Zipbox: Bundled machine time
Limits
- Max session
- Railway Sandboxes: No limit
- Zipbox: No limit
- Idle stop
- Railway Sandboxes: After 30 minutes
- Zipbox: Not listed
- Largest sandbox
- Railway Sandboxes: 32 vCPU · 32 GiB
- Zipbox: 6 vCPU · 16 GiB
- Concurrent sandboxes
- Railway Sandboxes: Up to 100
- Zipbox: Not listed
Platform
- Isolation
- Railway Sandboxes: Full VM
- Zipbox: Firecracker microVM
- GPU
- Railway Sandboxes: Not listed
- Zipbox: Not listed
- Snapshots
- Railway Sandboxes:
- Zipbox: No
- Pause and resume
- Railway Sandboxes: Not listed
- Zipbox: No
Developer
- SDKs
- Railway Sandboxes: TypeScript
- Zipbox: TypeScript, Python, Go, Rust
- Integrations
- Railway Sandboxes: Claude Code
- Zipbox: MCP, Claude Code, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK, LangChain
Trust
- License
- Railway Sandboxes: Not listed
- Zipbox: Not listed
- BYOC
- Railway Sandboxes: Not listed
- Zipbox: Not listed
Hourly cost
One sandbox running for one hour
Railway Sandboxes
Zipbox
- 1 vCPU · 2 GiB
- Railway Sandboxes: $0.208
- Zipbox: $0.007
- 2 vCPU · 4 GiB
- Railway Sandboxes: $0.417
- Zipbox: $0.014
- 4 vCPU · 8 GiB
- Railway Sandboxes: $0.833
- Zipbox: $0.027
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Railway Sandboxes fits when
- You want each sandbox to be a full VM.
- You need snapshots.
- Your code waits a lot: CPU is billed only while it is in use.
- You need a sandbox larger than 6 vCPU · 16 GiB.
Zipbox fits when
- You want to pay only for usage, with no plan fee.
- You want each sandbox in its own microVM.
- You use MCP, the Claude Agent SDK, the OpenAI Agents SDK, the Vercel AI SDK or LangChain.
- You want the lower list price: $0.014 against $0.417 an hour for 2 vCPU and 4 GiB.
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