Fly.io Sprites vs Lizard Sandboxes
Fly.io Sprites costs $0.0385 per vCPU-hour and Lizard Sandboxes costs $0.0081 per vCPU-hour. Fly.io Sprites runs microVMs. Lizard Sandboxes runs Firecracker microVMs and has no session limit.
Updated
Fly.io Sprites
- Isolation
- MicroVM
- Free tier
- $30 trial credit
- Max session
- Not listed
Lizard Sandboxes
- Isolation
- Firecracker microVM
- Free tier
- 7-day trial with $5 in trial credits
- Max session
- No limit
What is different
8 fields differ. The rest are the same or not listed.
Fly.io Sprites
Lizard Sandboxes
- vCPU, per hour
- Fly.io Sprites: $0.0385
- Lizard Sandboxes: $0.0081
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- Lizard Sandboxes: Included
- Storage
- Fly.io Sprites: $0.000683 per GiB-hour
- Lizard Sandboxes: Local disk is in the rate. Persistent Volumes $0.14 per GB a month
- Free tier
- Fly.io Sprites: $30 trial credit
- Lizard Sandboxes: 7-day trial with $5 in trial credits
- Paid plan from
- Fly.io Sprites: Pay as you go
- Lizard Sandboxes: $19 / month
- Billing
- Fly.io Sprites: Active CPU time only
- Lizard Sandboxes: Bundled machine time
- Isolation
- Fly.io Sprites: MicroVM
- Lizard Sandboxes: Firecracker microVM
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- Lizard Sandboxes: TypeScript, Python
Full comparison
18 fields, at each provider's list price
Fly.io Spritesfly
Lizard Sandboxeslizard
Pricing
- vCPU, per hour
- Fly.io Sprites: $0.0385
- Lizard Sandboxes: $0.0081
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- Lizard Sandboxes: Included
- Storage
- Fly.io Sprites: $0.000683 per GiB-hour
- Lizard Sandboxes: Local disk is in the rate. Persistent Volumes $0.14 per GB a month
- Free tier
- Fly.io Sprites: $30 trial credit
- Lizard Sandboxes: 7-day trial with $5 in trial credits
- Paid plan from
- Fly.io Sprites: Pay as you go
- Lizard Sandboxes: $19 / month
- Billing
- Fly.io Sprites: Active CPU time only
- Lizard Sandboxes: Bundled machine time
Limits
- Max session
- Fly.io Sprites: Not listed
- Lizard Sandboxes: No limit
- Idle stop
- Fly.io Sprites: Not listed
- Lizard Sandboxes: Not listed
- Largest sandbox
- Fly.io Sprites: Not listed
- Lizard Sandboxes: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Fly.io Sprites: Not listed
- Lizard Sandboxes: Up to 100
Platform
- Isolation
- Fly.io Sprites: MicroVM
- Lizard Sandboxes: Firecracker microVM
- GPU
- Fly.io Sprites: Not listed
- Lizard Sandboxes: Not listed
- Snapshots
- Fly.io Sprites:
- Lizard Sandboxes:
- Pause and resume
- Fly.io Sprites:
- Lizard Sandboxes:
Developer
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- Lizard Sandboxes: TypeScript, Python
- Integrations
- Fly.io Sprites: MCP, OpenAI Agents SDK
- Lizard Sandboxes: Not listed
Trust
- License
- Fly.io Sprites: Not listed
- Lizard Sandboxes: Not listed
- BYOC
- Fly.io Sprites: Not listed
- Lizard Sandboxes: Not listed
Hourly cost
One sandbox running for one hour
Fly.io Sprites
Lizard Sandboxes
- 1 vCPU · 2 GiB
- Fly.io Sprites: $0.082
- Lizard Sandboxes: $0.008
- 2 vCPU · 4 GiB
- Fly.io Sprites: $0.165
- Lizard Sandboxes: $0.016
- 4 vCPU · 8 GiB
- Fly.io Sprites: $0.329
- Lizard Sandboxes: $0.032
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Fly.io Sprites fits when
- You want to pay only for usage, with no plan fee.
- You use MCP or the OpenAI Agents SDK.
- Your code waits a lot: CPU is billed only while it is in use.
Lizard Sandboxes fits when
- You want the lower list price: $0.016 against $0.165 an hour for 2 vCPU and 4 GiB.
- You need a desktop in the sandbox.
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