Fly.io Sprites vs Thunder Sandboxes
Fly.io Sprites costs $0.0385 per vCPU-hour and Thunder Sandboxes costs $0.051 per vCPU-hour. Fly.io Sprites runs microVMs. Thunder Sandboxes runs Firecracker microVMs and offers GPUs.
Updated
Fly.io Sprites
- Isolation
- MicroVM
- Free tier
- $30 trial credit
- Max session
- Not listed
Thunder Sandboxes
- Isolation
- Firecracker microVM
- Free tier
- Not listed
- Max session
- Not listed
What is different
6 fields differ. The rest are the same or not listed.
Fly.io Sprites
Thunder Sandboxes
- vCPU, per hour
- Fly.io Sprites: $0.0385
- Thunder Sandboxes: $0.051
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- Thunder Sandboxes: $0.016
- Storage
- Fly.io Sprites: $0.000683 per GiB-hour
- Thunder Sandboxes: $0.00012 per GiB-hour
- Billing
- Fly.io Sprites: Active CPU time only
- Thunder Sandboxes: Per second
- Isolation
- Fly.io Sprites: MicroVM
- Thunder Sandboxes: Firecracker microVM
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- Thunder Sandboxes: Python
Full comparison
18 fields, at each provider's list price
Fly.io Spritesfly
Thunder Sandboxesthundercompute
Pricing
- vCPU, per hour
- Fly.io Sprites: $0.0385
- Thunder Sandboxes: $0.051
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- Thunder Sandboxes: $0.016
- Storage
- Fly.io Sprites: $0.000683 per GiB-hour
- Thunder Sandboxes: $0.00012 per GiB-hour
- Free tier
- Fly.io Sprites: $30 trial credit
- Thunder Sandboxes: Not listed
- Paid plan from
- Fly.io Sprites: Pay as you go
- Thunder Sandboxes: Not listed
- Billing
- Fly.io Sprites: Active CPU time only
- Thunder Sandboxes: Per second
Limits
- Max session
- Fly.io Sprites: Not listed
- Thunder Sandboxes: Not listed
- Idle stop
- Fly.io Sprites: Not listed
- Thunder Sandboxes: Not listed
- Largest sandbox
- Fly.io Sprites: Not listed
- Thunder Sandboxes: Not listed
- Concurrent sandboxes
- Fly.io Sprites: Not listed
- Thunder Sandboxes: Not listed
Platform
- Isolation
- Fly.io Sprites: MicroVM
- Thunder Sandboxes: Firecracker microVM
- GPU
- Fly.io Sprites: Not listed
- Thunder Sandboxes:
- Snapshots
- Fly.io Sprites:
- Thunder Sandboxes: Not listed
- Pause and resume
- Fly.io Sprites:
- Thunder Sandboxes: Not listed
Developer
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- Thunder Sandboxes: Python
- Integrations
- Fly.io Sprites: MCP, OpenAI Agents SDK
- Thunder Sandboxes: Not listed
Trust
- License
- Fly.io Sprites: Not listed
- Thunder Sandboxes: Not listed
- BYOC
- Fly.io Sprites: Not listed
- Thunder Sandboxes: Not listed
Hourly cost
One sandbox running for one hour
Fly.io Sprites
Thunder Sandboxes
- 1 vCPU · 2 GiB
- Fly.io Sprites: $0.082
- Thunder Sandboxes: $0.083
- 2 vCPU · 4 GiB
- Fly.io Sprites: $0.165
- Thunder Sandboxes: $0.166
- 4 vCPU · 8 GiB
- Fly.io Sprites: $0.329
- Thunder Sandboxes: $0.332
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Fly.io Sprites fits when
- You use MCP or the OpenAI Agents SDK.
- You want the lower list price: $0.165 against $0.166 an hour for 2 vCPU and 4 GiB.
- You need snapshots.
- You need pause and resume.
Thunder Sandboxes fits when
- You need GPUs.
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