Fly.io Sprites vs LangSmith Sandboxes
Fly.io Sprites costs $0.0385 per vCPU-hour and LangSmith Sandboxes costs $0.0576 per vCPU-hour. Fly.io Sprites runs microVMs. LangSmith Sandboxes runs Firecracker microVMs.
Updated
Fly.io Sprites
- Isolation
- MicroVM
- Free tier
- $30 trial credit
- Max session
- Not listed
LangSmith Sandboxes
- Isolation
- Firecracker microVM
- Free tier
- Credit of 8 LSU every month
- Max session
- Not listed
What is different
8 fields differ. The rest are the same or not listed.
Fly.io Sprites
LangSmith Sandboxes
- vCPU, per hour
- Fly.io Sprites: $0.0385
- LangSmith Sandboxes: $0.0576
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- LangSmith Sandboxes: $0.01845
- Storage
- Fly.io Sprites: $0.000683 per GiB-hour
- LangSmith Sandboxes: $0.000123 per GiB-hour
- Free tier
- Fly.io Sprites: $30 trial credit
- LangSmith Sandboxes: Credit of 8 LSU every month
- Billing
- Fly.io Sprites: Active CPU time only
- LangSmith Sandboxes: Per second
- Isolation
- Fly.io Sprites: MicroVM
- LangSmith Sandboxes: Firecracker microVM
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- LangSmith Sandboxes: Python, TypeScript
- Integrations
- Fly.io Sprites: MCP, OpenAI Agents SDK
- LangSmith Sandboxes: LangChain
Full comparison
18 fields, at each provider's list price
Fly.io Spritesfly
LangSmith Sandboxeslangchain
Pricing
- vCPU, per hour
- Fly.io Sprites: $0.0385
- LangSmith Sandboxes: $0.0576
- RAM, per GiB-hour
- Fly.io Sprites: $0.021875
- LangSmith Sandboxes: $0.01845
- Storage
- Fly.io Sprites: $0.000683 per GiB-hour
- LangSmith Sandboxes: $0.000123 per GiB-hour
- Free tier
- Fly.io Sprites: $30 trial credit
- LangSmith Sandboxes: Credit of 8 LSU every month
- Paid plan from
- Fly.io Sprites: Pay as you go
- LangSmith Sandboxes: Not listed
- Billing
- Fly.io Sprites: Active CPU time only
- LangSmith Sandboxes: Per second
Limits
- Max session
- Fly.io Sprites: Not listed
- LangSmith Sandboxes: Not listed
- Idle stop
- Fly.io Sprites: Not listed
- LangSmith Sandboxes: After 10 minutes
- Largest sandbox
- Fly.io Sprites: Not listed
- LangSmith Sandboxes: 16 vCPU · 64 GiB
- Concurrent sandboxes
- Fly.io Sprites: Not listed
- LangSmith Sandboxes: Not listed
Platform
- Isolation
- Fly.io Sprites: MicroVM
- LangSmith Sandboxes: Firecracker microVM
- GPU
- Fly.io Sprites: Not listed
- LangSmith Sandboxes: Not listed
- Snapshots
- Fly.io Sprites:
- LangSmith Sandboxes:
- Pause and resume
- Fly.io Sprites:
- LangSmith Sandboxes:
Developer
- SDKs
- Fly.io Sprites: Python, JavaScript / TypeScript, Go
- LangSmith Sandboxes: Python, TypeScript
- Integrations
- Fly.io Sprites: MCP, OpenAI Agents SDK
- LangSmith Sandboxes: LangChain
Trust
- License
- Fly.io Sprites: Not listed
- LangSmith Sandboxes: Not listed
- BYOC
- Fly.io Sprites: Not listed
- LangSmith Sandboxes: Enterprise plan
Hourly cost
One sandbox running for one hour
Fly.io Sprites
LangSmith Sandboxes
- 1 vCPU · 2 GiB
- Fly.io Sprites: $0.082
- LangSmith Sandboxes: $0.095
- 2 vCPU · 4 GiB
- Fly.io Sprites: $0.165
- LangSmith Sandboxes: $0.189
- 4 vCPU · 8 GiB
- Fly.io Sprites: $0.329
- LangSmith Sandboxes: $0.378
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 $0.189 an hour for 2 vCPU and 4 GiB.
- You want the larger free credit: $30 against $8.
- Your code waits a lot: CPU is billed only while it is in use.
LangSmith Sandboxes fits when
- You use LangChain.
- You need the sandboxes in your own cloud account.
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