Cua Fleets vs Sandbox as a Service
Cua Fleets costs $0.044625 per vCPU-hour and Sandbox as a Service costs $0.045 per vCPU-hour. Cua Fleets runs gVisor. Sandbox as a Service runs full VMs and limits a session to 24 hours.
Updated
Sandbox as a Service
- Isolation
- Full VM
- Free tier
- $5 credit
- Max session
- 24 hours
What is different
7 fields differ. The rest are the same or not listed.
Cua Fleets
Sandbox as a Service
- vCPU, per hour
- Cua Fleets: $0.044625
- Sandbox as a Service: $0.045
- RAM, per GiB-hour
- Cua Fleets: $0.0223125
- Sandbox as a Service: Included
- Billing
- Cua Fleets: Per second
- Sandbox as a Service: Bundled machine time
- Largest sandbox
- Cua Fleets: 8 vCPU · 32 GiB
- Sandbox as a Service: 8 vCPU · 16 GiB
- Isolation
- Cua Fleets: gVisor
- Sandbox as a Service: Full VM
- SDKs
- Cua Fleets: Python, TypeScript, Rust
- Sandbox as a Service: Python, JavaScript / TypeScript
- Integrations
- Cua Fleets: OpenAI Agents SDK, MCP
- Sandbox as a Service: MCP
Full comparison
18 fields, at each provider's list price
Cua Fleetscua
Sandbox as a Servicesandbox-as-a-service
Pricing
- vCPU, per hour
- Cua Fleets: $0.044625
- Sandbox as a Service: $0.045
- RAM, per GiB-hour
- Cua Fleets: $0.0223125
- Sandbox as a Service: Included
- Storage
- Cua Fleets: Free
- Sandbox as a Service: Not listed
- Free tier
- Cua Fleets: Not listed
- Sandbox as a Service: $5 credit
- Paid plan from
- Cua Fleets: Not listed
- Sandbox as a Service: Pay as you go
- Billing
- Cua Fleets: Per second
- Sandbox as a Service: Bundled machine time
Limits
- Max session
- Cua Fleets: Not listed
- Sandbox as a Service: 24 hours
- Idle stop
- Cua Fleets: Not listed
- Sandbox as a Service: Not listed
- Largest sandbox
- Cua Fleets: 8 vCPU · 32 GiB
- Sandbox as a Service: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Cua Fleets: Not listed
- Sandbox as a Service: Up to 20
Platform
- Isolation
- Cua Fleets: gVisor
- Sandbox as a Service: Full VM
- GPU
- Cua Fleets: Not listed
- Sandbox as a Service: Not listed
- Snapshots
- Cua Fleets: Not listed
- Sandbox as a Service:
- Pause and resume
- Cua Fleets: No
- Sandbox as a Service: Not listed
Developer
- SDKs
- Cua Fleets: Python, TypeScript, Rust
- Sandbox as a Service: Python, JavaScript / TypeScript
- Integrations
- Cua Fleets: OpenAI Agents SDK, MCP
- Sandbox as a Service: MCP
Trust
- License
- Cua Fleets: Not listed
- Sandbox as a Service: Not listed
- BYOC
- Cua Fleets: Your AWS, Google Cloud, or Modal account
- Sandbox as a Service: Not listed
Hourly cost
One sandbox running for one hour
Cua Fleets
Sandbox as a Service
- 1 vCPU · 2 GiB
- Cua Fleets: $0.089
- Sandbox as a Service: $0.045
- 2 vCPU · 4 GiB
- Cua Fleets: $0.179
- Sandbox as a Service: $0.090
- 4 vCPU · 8 GiB
- Cua Fleets: $0.357
- Sandbox as a Service: $0.180
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Cua Fleets fits when
- You use the OpenAI Agents SDK.
- You need a desktop in the sandbox.
- You need the sandboxes in your own cloud account.
- You need a sandbox larger than 8 vCPU · 16 GiB.
Sandbox as a Service fits when
- You want each sandbox to be a full VM.
- You want the lower list price: $0.090 against $0.179 an hour for 2 vCPU and 4 GiB.
- You need snapshots.
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