Unikraft Cloud vs Vercel Sandbox

Vercel Sandbox costs $0.128 per vCPU-hour. Unikraft Cloud runs Firecracker microVMs. Vercel Sandbox runs Firecracker microVMs and limits a session to 24 hours.

Updated

Unikraft Cloud

Isolation
Firecracker microVM
Free tier
Hobby plan, free forever
Max session
Not listed

Vercel Sandbox

Isolation
Firecracker microVM
Free tier
5 CPU-hours every month
Max session
24 hours

What is different

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

Unikraft Cloud
Vercel Sandbox
Free tier
Unikraft Cloud: Hobby plan, free forever
Vercel Sandbox: 5 CPU-hours every month
Paid plan from
Unikraft Cloud: $39 / month
Vercel Sandbox: $20 / month
Concurrent sandboxes
Unikraft Cloud: Up to 24
Vercel Sandbox: Up to 10,000
SDKs
Unikraft Cloud: Python, JavaScript / TypeScript, Go
Vercel Sandbox: Python, JavaScript / TypeScript

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Unikraft Cloud: Not listed
Vercel Sandbox: $0.128
RAM, per GiB-hour
Unikraft Cloud: Not listed
Vercel Sandbox: $0.0212
Storage
Unikraft Cloud: Not listed
Vercel Sandbox: On Pro, snapshots $0.08 per GB-month and drives $0.05 per GB-month (beta).
Free tier
Unikraft Cloud: Hobby plan, free forever
Vercel Sandbox: 5 CPU-hours every month
Paid plan from
Unikraft Cloud: $39 / month
Vercel Sandbox: $20 / month
Billing
Unikraft Cloud: Not listed
Vercel Sandbox: Active CPU time only

Limits

Max session
Unikraft Cloud: Not listed
Vercel Sandbox: 24 hours
Idle stop
Unikraft Cloud: Not listed
Vercel Sandbox: Not listed
Largest sandbox
Unikraft Cloud: Not listed
Vercel Sandbox: 8 vCPU · 16 GiB
Concurrent sandboxes
Unikraft Cloud: Up to 24
Vercel Sandbox: Up to 10,000

Platform

Isolation
Unikraft Cloud: Firecracker microVM
Vercel Sandbox: Firecracker microVM
GPU
Unikraft Cloud: Not listed
Vercel Sandbox: Not listed
Snapshots
Unikraft Cloud:
Vercel Sandbox:
Pause and resume
Unikraft Cloud:
Vercel Sandbox:

Developer

SDKs
Unikraft Cloud: Python, JavaScript / TypeScript, Go
Vercel Sandbox: Python, JavaScript / TypeScript
Integrations
Unikraft Cloud: Not listed
Vercel Sandbox: Claude Agent SDK, LangChain, OpenAI Agents SDK, Vercel AI SDK

Trust

License
Unikraft Cloud: Not listed
Vercel Sandbox: Not listed
BYOC
Unikraft Cloud: Enterprise plan
Vercel Sandbox: Not listed

Hourly cost

One sandbox running for one hour

Unikraft Cloud
Vercel Sandbox
1 vCPU · 2 GiB
Unikraft Cloud: Not listed
Vercel Sandbox: $0.170
2 vCPU · 4 GiB
Unikraft Cloud: Not listed
Vercel Sandbox: $0.341
4 vCPU · 8 GiB
Unikraft Cloud: Not listed
Vercel Sandbox: $0.682

Compute only, at list rates.

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Which one fits

Based on the fields above

Unikraft Cloud fits when

  • You need the sandboxes in your own cloud account.
  • You need HIPAA and GDPR.

Vercel Sandbox fits when

  • You use the Claude Agent SDK, LangChain, the OpenAI Agents SDK or the Vercel AI SDK.
  • Your code waits a lot: CPU is billed only while it is in use.

More comparisons

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