Fly.io Sprites vs Sandbox as a Service
Fly.io Sprites costs $0.0385 per vCPU-hour and Sandbox as a Service costs $0.045 per vCPU-hour. Fly.io Sprites runs microVMs. Sandbox as a Service runs full VMs and limits a session to 24 hours.
Updated
Fly.io Sprites
- Isolation
- MicroVM
- Free tier
- $30 trial credit
- Max session
- Not listed
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.
Fly.io Sprites
Sandbox as a Service
- vCPU, per hour
- Fly.io Sprites: $0.0385
- Sandbox as a Service: $0.045
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- Sandbox as a Service: Included
- Free tier
- Fly.io Sprites: $30 trial credit
- Sandbox as a Service: $5 credit
- Billing
- Fly.io Sprites: Active CPU time only
- Sandbox as a Service: Bundled machine time
- Isolation
- Fly.io Sprites: MicroVM
- Sandbox as a Service: Full VM
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- Sandbox as a Service: Python, JavaScript / TypeScript
- Integrations
- Fly.io Sprites: MCP, OpenAI Agents SDK
- Sandbox as a Service: MCP
Full comparison
18 fields, at each provider's list price
Fly.io Spritesfly
Sandbox as a Servicesandbox-as-a-service
Pricing
- vCPU, per hour
- Fly.io Sprites: $0.0385
- Sandbox as a Service: $0.045
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- Sandbox as a Service: Included
- Storage
- Fly.io Sprites: $0.000683 per GiB-hour
- Sandbox as a Service: Not listed
- Free tier
- Fly.io Sprites: $30 trial credit
- Sandbox as a Service: $5 credit
- Paid plan from
- Fly.io Sprites: Pay as you go
- Sandbox as a Service: Pay as you go
- Billing
- Fly.io Sprites: Active CPU time only
- Sandbox as a Service: Bundled machine time
Limits
- Max session
- Fly.io Sprites: Not listed
- Sandbox as a Service: 24 hours
- Idle stop
- Fly.io Sprites: Not listed
- Sandbox as a Service: Not listed
- Largest sandbox
- Fly.io Sprites: Not listed
- Sandbox as a Service: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Fly.io Sprites: Not listed
- Sandbox as a Service: Up to 20
Platform
- Isolation
- Fly.io Sprites: MicroVM
- Sandbox as a Service: Full VM
- GPU
- Fly.io Sprites: Not listed
- Sandbox as a Service: Not listed
- Snapshots
- Fly.io Sprites:
- Sandbox as a Service:
- Pause and resume
- Fly.io Sprites:
- Sandbox as a Service: Not listed
Developer
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- Sandbox as a Service: Python, JavaScript / TypeScript
- Integrations
- Fly.io Sprites: MCP, OpenAI Agents SDK
- Sandbox as a Service: MCP
Trust
- License
- Fly.io Sprites: Not listed
- Sandbox as a Service: Not listed
- BYOC
- Fly.io Sprites: Not listed
- Sandbox as a Service: Not listed
Hourly cost
One sandbox running for one hour
Fly.io Sprites
Sandbox as a Service
- 1 vCPU · 2 GiB
- Fly.io Sprites: $0.082
- Sandbox as a Service: $0.045
- 2 vCPU · 4 GiB
- Fly.io Sprites: $0.165
- Sandbox as a Service: $0.090
- 4 vCPU · 8 GiB
- Fly.io Sprites: $0.329
- Sandbox as a Service: $0.180
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Fly.io Sprites fits when
- You want each sandbox in its own microVM.
- You use the OpenAI Agents SDK.
- You want the larger free credit: $30 against $5.
- You need pause and resume.
Sandbox as a Service fits when
- You want each sandbox to be a full VM.
- You want the lower list price: $0.090 against $0.165 an hour for 2 vCPU and 4 GiB.
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