Shellbox vs Vercel Sandbox
Shellbox costs $0.01 per vCPU-hour and Vercel Sandbox costs $0.128 per vCPU-hour. Shellbox runs Firecracker microVMs and has no session limit. Vercel Sandbox runs Firecracker microVMs and limits a session to 24 hours.
Updated
Shellbox
- Isolation
- Firecracker microVM
- Free tier
- Not listed
- Max session
- No limit
Vercel Sandbox
- Isolation
- Firecracker microVM
- Free tier
- 5 CPU-hours every month
- Max session
- 24 hours
What is different
9 fields differ. The rest are the same or not listed.
Shellbox
Vercel Sandbox
- vCPU, per hour
- Shellbox: $0.01
- Vercel Sandbox: $0.128
- RAM, per GiB-hour
- Shellbox: Included
- Vercel Sandbox: $0.0212
- Storage
- Shellbox: A stopped box costs $0.50 per x1 slot per month
- Vercel Sandbox: Snapshots $0.08 per GB-month. Drives $0.05 per GB-month in iad1, plus reads and writes. Hobby includes 15 GB of each.
- Paid plan from
- Shellbox: Pay as you go
- Vercel Sandbox: $20 / month
- Billing
- Shellbox: Bundled machine time
- Vercel Sandbox: Active CPU time only
- Max session
- Shellbox: No limit
- Vercel Sandbox: 24 hours
- Largest sandbox
- Shellbox: 16 vCPU · 32 GiB
- Vercel Sandbox: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Shellbox: Up to 16
- Vercel Sandbox: Up to 10,000
- Integrations
- Shellbox: Claude Code
- Vercel Sandbox: Claude Agent SDK, LangChain, OpenAI Agents SDK, Vercel AI SDK, Claude Code, MCP
Full comparison
18 fields, at each provider's list price
Shellboxshellbox
Vercel Sandboxvercel
Pricing
- vCPU, per hour
- Shellbox: $0.01
- Vercel Sandbox: $0.128
- RAM, per GiB-hour
- Shellbox: Included
- Vercel Sandbox: $0.0212
- Storage
- Shellbox: A stopped box costs $0.50 per x1 slot per month
- Vercel Sandbox: Snapshots $0.08 per GB-month. Drives $0.05 per GB-month in iad1, plus reads and writes. Hobby includes 15 GB of each.
- Free tier
- Shellbox: Not listed
- Vercel Sandbox: 5 CPU-hours every month
- Paid plan from
- Shellbox: Pay as you go
- Vercel Sandbox: $20 / month
- Billing
- Shellbox: Bundled machine time
- Vercel Sandbox: Active CPU time only
Limits
- Max session
- Shellbox: No limit
- Vercel Sandbox: 24 hours
- Idle stop
- Shellbox: After 2 minutes
- Vercel Sandbox: Not listed
- Largest sandbox
- Shellbox: 16 vCPU · 32 GiB
- Vercel Sandbox: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Shellbox: Up to 16
- Vercel Sandbox: Up to 10,000
Platform
- Isolation
- Shellbox: Firecracker microVM
- Vercel Sandbox: Firecracker microVM
- GPU
- Shellbox: Not listed
- Vercel Sandbox: Not listed
- Snapshots
- Shellbox:
- Vercel Sandbox:
- Pause and resume
- Shellbox:
- Vercel Sandbox:
Developer
- SDKs
- Shellbox: Not listed
- Vercel Sandbox: Python, JavaScript / TypeScript
- Integrations
- Shellbox: Claude Code
- Vercel Sandbox: Claude Agent SDK, LangChain, OpenAI Agents SDK, Vercel AI SDK, Claude Code, MCP
Trust
- License
- Shellbox: Not listed
- Vercel Sandbox: Not listed
- BYOC
- Shellbox: Not listed
- Vercel Sandbox: Not listed
Hourly cost
One sandbox running for one hour
Shellbox
Vercel Sandbox
- 1 vCPU · 2 GiB
- Shellbox: $0.010
- Vercel Sandbox: $0.170
- 2 vCPU · 4 GiB
- Shellbox: $0.020
- Vercel Sandbox: $0.341
- 4 vCPU · 8 GiB
- Shellbox: $0.040
- Vercel Sandbox: $0.682
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Shellbox fits when
- A session must run longer than 24 hours.
- You want to pay only for usage, with no plan fee.
- You want the lower list price: $0.020 against $0.341 an hour for 2 vCPU and 4 GiB.
- You need a sandbox larger than 8 vCPU · 16 GiB.
Vercel Sandbox fits when
- You use the Claude Agent SDK, LangChain, the OpenAI Agents SDK, the Vercel AI SDK or MCP.
- Your code waits a lot: CPU is billed only while it is in use.
- You need SOC 2 Type II, ISO 27001 and GDPR.
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