Cloudflare Sandbox vs Cua Fleets
Cloudflare Sandbox costs $0.072 per vCPU-hour and Cua Fleets costs $0.044625 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Cua Fleets runs gVisor.
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
Cua Fleets
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Cua Fleets: $0.044625
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Cua Fleets: $0.0223125
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Cua Fleets: Free
- Billing
- Cloudflare Sandbox: Active CPU time only
- Cua Fleets: Per second
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Cua Fleets: 8 vCPU · 32 GiB
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Cua Fleets: gVisor
- SDKs
- Cloudflare Sandbox: TypeScript
- Cua Fleets: Python, TypeScript, Rust
Full comparison
18 fields, at each provider's list price
Cloudflare Sandboxdevelopers
Cua Fleetscua
Pricing
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Cua Fleets: $0.044625
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Cua Fleets: $0.0223125
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Cua Fleets: Free
- Free tier
- Cloudflare Sandbox: None
- Cua Fleets: Not listed
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Cua Fleets: Not listed
- Billing
- Cloudflare Sandbox: Active CPU time only
- Cua Fleets: Per second
Limits
- Max session
- Cloudflare Sandbox: Not listed
- Cua Fleets: Not listed
- Idle stop
- Cloudflare Sandbox: Not listed
- Cua Fleets: Not listed
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Cua Fleets: 8 vCPU · 32 GiB
- Concurrent sandboxes
- Cloudflare Sandbox: Not listed
- Cua Fleets: Not listed
Platform
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Cua Fleets: gVisor
- GPU
- Cloudflare Sandbox: Not listed
- Cua Fleets: Not listed
- Snapshots
- Cloudflare Sandbox:
- Cua Fleets: Not listed
- Pause and resume
- Cloudflare Sandbox: Not listed
- Cua Fleets: No
Developer
- SDKs
- Cloudflare Sandbox: TypeScript
- Cua Fleets: Python, TypeScript, Rust
- Integrations
- Cloudflare Sandbox: Not listed
- Cua Fleets: OpenAI Agents SDK, MCP
Trust
- License
- Cloudflare Sandbox: Not listed
- Cua Fleets: Not listed
- BYOC
- Cloudflare Sandbox: Not listed
- Cua Fleets: Your AWS, Google Cloud, or Modal account
Hourly cost
One sandbox running for one hour
Cloudflare Sandbox
Cua Fleets
- 1 vCPU · 2 GiB
- Cloudflare Sandbox: $0.090
- Cua Fleets: $0.089
- 2 vCPU · 4 GiB
- Cloudflare Sandbox: $0.180
- Cua Fleets: $0.179
- 4 vCPU · 8 GiB
- Cloudflare Sandbox: $0.360
- Cua Fleets: $0.357
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 need snapshots.
- Your code waits a lot: CPU is billed only while it is in use.
Cua Fleets fits when
- You use the OpenAI Agents SDK or MCP.
- You want the lower list price: $0.179 against $0.180 an hour for 2 vCPU and 4 GiB.
- You need a desktop in the sandbox.
- You need the sandboxes in your own cloud account.
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