Cloudflare Sandbox vs Freestyle VMs
Cloudflare Sandbox costs $0.072 per vCPU-hour and Freestyle VMs costs $0.04032 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Freestyle VMs runs full VMs.
Updated
Cloudflare Sandbox
- Isolation
- Firecracker microVM
- Free tier
- None
- Max session
- Not listed
Freestyle VMs
- Isolation
- Full VM
- Free tier
- Free plan, $0 forever
- Max session
- Not listed
What is different
9 fields differ. The rest are the same or not listed.
Cloudflare Sandbox
Freestyle VMs
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Freestyle VMs: $0.04032
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Freestyle VMs: $0.0129
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Freestyle VMs: $0.000086 per GiB-hour
- Free tier
- Cloudflare Sandbox: None
- Freestyle VMs: Free plan, $0 forever
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Freestyle VMs: $50 / month
- Billing
- Cloudflare Sandbox: Active CPU time only
- Freestyle VMs: Per second
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Freestyle VMs: 32 vCPU · 64 GiB
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Freestyle VMs: Full VM
- SDKs
- Cloudflare Sandbox: TypeScript
- Freestyle VMs: JavaScript
Full comparison
18 fields, at each provider's list price
Cloudflare Sandboxdevelopers
Freestyle VMsfreestyle
Pricing
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Freestyle VMs: $0.04032
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Freestyle VMs: $0.0129
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Freestyle VMs: $0.000086 per GiB-hour
- Free tier
- Cloudflare Sandbox: None
- Freestyle VMs: Free plan, $0 forever
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Freestyle VMs: $50 / month
- Billing
- Cloudflare Sandbox: Active CPU time only
- Freestyle VMs: Per second
Limits
- Max session
- Cloudflare Sandbox: Not listed
- Freestyle VMs: Not listed
- Idle stop
- Cloudflare Sandbox: Not listed
- Freestyle VMs: Not listed
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Freestyle VMs: 32 vCPU · 64 GiB
- Concurrent sandboxes
- Cloudflare Sandbox: Not listed
- Freestyle VMs: Up to 400
Platform
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Freestyle VMs: Full VM
- GPU
- Cloudflare Sandbox: Not listed
- Freestyle VMs: Not listed
- Snapshots
- Cloudflare Sandbox:
- Freestyle VMs:
- Pause and resume
- Cloudflare Sandbox: Not listed
- Freestyle VMs:
Developer
- SDKs
- Cloudflare Sandbox: TypeScript
- Freestyle VMs: JavaScript
- Integrations
- Cloudflare Sandbox: Not listed
- Freestyle VMs: OpenAI Agents SDK, Claude Agent SDK
Trust
- License
- Cloudflare Sandbox: Not listed
- Freestyle VMs: Not listed
- BYOC
- Cloudflare Sandbox: Not listed
- Freestyle VMs: Not listed
Hourly cost
One sandbox running for one hour
Cloudflare Sandbox
Freestyle VMs
- 1 vCPU · 2 GiB
- Cloudflare Sandbox: $0.090
- Freestyle VMs: $0.066
- 2 vCPU · 4 GiB
- Cloudflare Sandbox: $0.180
- Freestyle VMs: $0.132
- 4 vCPU · 8 GiB
- Cloudflare Sandbox: $0.360
- Freestyle VMs: $0.264
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Cloudflare Sandbox fits when
- You want each sandbox in its own microVM.
- Your code waits a lot: CPU is billed only while it is in use.
Freestyle VMs fits when
- You want each sandbox to be a full VM.
- You use the OpenAI Agents SDK or the Claude Agent SDK.
- You want the lower list price: $0.132 against $0.180 an hour for 2 vCPU and 4 GiB.
- You want to start without paying.
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