Cloudflare Sandbox vs Modal
Cloudflare Sandbox costs $0.072 per vCPU-hour and Modal costs $0.070956 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Modal runs gVisor, offers GPUs and limits a session to 24 hours.
Updated
Cloudflare Sandbox
- Isolation
- Firecracker microVM
- Free tier
- None
- Max session
- Not listed
What is different
7 fields differ. The rest are the same or not listed.
Cloudflare Sandbox
Modal
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Modal: $0.070956
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Modal: $0.024012
- Free tier
- Cloudflare Sandbox: None
- Modal: $30 credit every month
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Modal: Pay as you go
- Billing
- Cloudflare Sandbox: Active CPU time only
- Modal: Per second
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Modal: gVisor
- SDKs
- Cloudflare Sandbox: TypeScript
- Modal: Python, JavaScript / TypeScript, Go
Full comparison
18 fields, at each provider's list price
Cloudflare Sandboxdevelopers
Modalmodal
Pricing
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Modal: $0.070956
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Modal: $0.024012
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Modal: Not listed
- Free tier
- Cloudflare Sandbox: None
- Modal: $30 credit every month
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Modal: Pay as you go
- Billing
- Cloudflare Sandbox: Active CPU time only
- Modal: Per second
Limits
- Max session
- Cloudflare Sandbox: Not listed
- Modal: 24 hours
- Idle stop
- Cloudflare Sandbox: Not listed
- Modal: Not listed
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Modal: Not listed
- Concurrent sandboxes
- Cloudflare Sandbox: Not listed
- Modal: Not listed
Platform
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Modal: gVisor
- GPU
- Cloudflare Sandbox: Not listed
- Modal:
- Snapshots
- Cloudflare Sandbox:
- Modal:
- Pause and resume
- Cloudflare Sandbox: Not listed
- Modal: Not listed
Developer
- SDKs
- Cloudflare Sandbox: TypeScript
- Modal: Python, JavaScript / TypeScript, Go
- Integrations
- Cloudflare Sandbox: Not listed
- Modal: Claude Agent SDK
Trust
- License
- Cloudflare Sandbox: Not listed
- Modal: Not listed
- BYOC
- Cloudflare Sandbox: Not listed
- Modal: Not listed
Hourly cost
One sandbox running for one hour
Cloudflare Sandbox
Modal
- 1 vCPU · 2 GiB
- Cloudflare Sandbox: $0.090
- Modal: $0.119
- 2 vCPU · 4 GiB
- Cloudflare Sandbox: $0.180
- Modal: $0.238
- 4 vCPU · 8 GiB
- Cloudflare Sandbox: $0.360
- Modal: $0.476
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.
- You want the lower list price: $0.180 against $0.238 an hour for 2 vCPU and 4 GiB.
- Your code waits a lot: CPU is billed only while it is in use.
Modal fits when
- You need GPUs.
- You want to pay only for usage, with no plan fee.
- You use the Claude Agent SDK.
- You want to start without paying.
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