Fly.io Sprites
Persistent Linux computers that sleep when idle.
Fly.io Sprites runs each sandbox in a microVM. It costs $0.0385 per vCPU-hour and $0.021875 per GiB-hour, with CPU billed only while code uses it. New accounts get a $30 trial credit.
Updated
$0.039
vCPU per hour
$0.022
RAM per GiB-hour
Not listed
Max session
Not listed
Largest sandbox
Specifications
List prices and limits for Fly.io Sprites
Pricing
fly- vCPU per hour
- $0.0385
- RAM per GiB-hour
- $0.021875
- Storage
- $0.000683 per GiB-hour
- Billing
- Active CPU time only
- Free tier
- $30 trial credit
- Paid plan from
- Pay as you go
Limits
docs- Max session
- Not listed
- Idle stop
- Not listed
- Sandbox size
- Not listed
- Default size
- Not listed
- Concurrent sandboxes
- Not listed
- Storage
- 100 GB disk
Platform
docs- Isolation
- MicroVM
- GPU
- Not listed
- Snapshots
- Checkpoints
- Pause and resume
- Pauses after about 30 seconds without activity
- Desktop
- Not listed
- Regions
- Not listed
Developer
fly- SDKs
- Python, JavaScript / TypeScript, Go
- Integrations
- MCP, OpenAI Agents SDK
Hourly cost
Fly.io Sprites next to other providers
One sandbox with 2 vCPU and 4 GiB of RAM for one hour, at list price.
Agent37 Cloud
Hugging Face Sandboxes
Lizard Sandboxes
boat
Koyeb Sandboxes
Celesto Cloud
tamaFly.io SpritesCompute only. Storage and network are not included.
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Alternatives to Fly.io Sprites
Agent37 Cloud
Persistent Linux sandboxes and VMs for code and agents.
$0.001 per vCPU-hour, no session limit
Hugging Face Sandboxes
Isolated cloud machines for running AI-generated code.
$0.005 per vCPU-hour, GPUs
Lizard Sandboxes
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$0.008 per vCPU-hour, no session limit
Recent changes
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