Cloudflare Sandbox vs Vercel Sandbox

Cloudflare Sandbox costs $0.072 per vCPU-hour and Vercel Sandbox costs $0.128 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Vercel Sandbox runs Firecracker microVMs and limits a session to 24 hours.

Updated

Cloudflare Sandbox

Isolation
Firecracker microVM
Free tier
None
Max session
Not listed

Vercel Sandbox

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

What is different

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

Cloudflare Sandbox
Vercel Sandbox
vCPU, per hour
Cloudflare Sandbox: $0.072
Vercel Sandbox: $0.128
RAM, per GiB-hour
Cloudflare Sandbox: $0.009
Vercel Sandbox: $0.0212
Storage
Cloudflare Sandbox: $0.000252 per GiB-hour
Vercel Sandbox: On Pro, snapshots $0.08 per GB-month and drives $0.05 per GB-month (beta).
Free tier
Cloudflare Sandbox: None
Vercel Sandbox: 5 CPU-hours every month
Paid plan from
Cloudflare Sandbox: $5 / month
Vercel Sandbox: $20 / month
Largest sandbox
Cloudflare Sandbox: 4 vCPU · 12 GiB
Vercel Sandbox: 8 vCPU · 16 GiB
SDKs
Cloudflare Sandbox: TypeScript
Vercel Sandbox: Python, JavaScript / TypeScript

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Cloudflare Sandbox: $0.072
Vercel Sandbox: $0.128
RAM, per GiB-hour
Cloudflare Sandbox: $0.009
Vercel Sandbox: $0.0212
Storage
Cloudflare Sandbox: $0.000252 per GiB-hour
Vercel Sandbox: On Pro, snapshots $0.08 per GB-month and drives $0.05 per GB-month (beta).
Free tier
Cloudflare Sandbox: None
Vercel Sandbox: 5 CPU-hours every month
Paid plan from
Cloudflare Sandbox: $5 / month
Vercel Sandbox: $20 / month
Billing
Cloudflare Sandbox: Active CPU time only
Vercel Sandbox: Active CPU time only

Limits

Max session
Cloudflare Sandbox: Not listed
Vercel Sandbox: 24 hours
Idle stop
Cloudflare Sandbox: Not listed
Vercel Sandbox: Not listed
Largest sandbox
Cloudflare Sandbox: 4 vCPU · 12 GiB
Vercel Sandbox: 8 vCPU · 16 GiB
Concurrent sandboxes
Cloudflare Sandbox: Not listed
Vercel Sandbox: Up to 10,000

Platform

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

Developer

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

Trust

License
Cloudflare Sandbox: Not listed
Vercel Sandbox: Not listed
BYOC
Cloudflare Sandbox: Not listed
Vercel Sandbox: Not listed

Hourly cost

One sandbox running for one hour

Cloudflare Sandbox
Vercel Sandbox
1 vCPU · 2 GiB
Cloudflare Sandbox: $0.090
Vercel Sandbox: $0.170
2 vCPU · 4 GiB
Cloudflare Sandbox: $0.180
Vercel Sandbox: $0.341
4 vCPU · 8 GiB
Cloudflare Sandbox: $0.360
Vercel Sandbox: $0.682

Compute only, at list rates.

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Which one fits

Based on the fields above

Cloudflare Sandbox fits when

  • You want the lower list price: $0.180 against $0.341 an hour for 2 vCPU and 4 GiB.

Vercel Sandbox fits when

  • You use the Claude Agent SDK, LangChain, the OpenAI Agents SDK or the Vercel AI SDK.
  • You want to start without paying.
  • You need pause and resume.
  • You need a sandbox larger than 4 vCPU · 12 GiB.

More comparisons

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