LangSmith Sandboxes vs Phonebox
LangSmith Sandboxes costs $0.0576 per vCPU-hour. LangSmith Sandboxes runs Firecracker microVMs. Phonebox limits a session to 3 hours.
Updated
LangSmith Sandboxes
- Isolation
- Firecracker microVM
- Free tier
- Credit of 8 LSU every month
- Max session
- Not listed
Phonebox
- Isolation
- Not listed
- Free tier
- $2 starter credit, one time, no card
- Max session
- 3 hours
What is different
5 fields differ. The rest are the same or not listed.
LangSmith Sandboxes
Phonebox
- Free tier
- LangSmith Sandboxes: Credit of 8 LSU every month
- Phonebox: $2 starter credit, one time, no card
- Billing
- LangSmith Sandboxes: Per second
- Phonebox: Bundled machine time
- Idle stop
- LangSmith Sandboxes: After 10 minutes
- Phonebox: After 5 minutes
- SDKs
- LangSmith Sandboxes: Python, TypeScript
- Phonebox: TypeScript
- Integrations
- LangSmith Sandboxes: LangChain
- Phonebox: MCP
Full comparison
18 fields, at each provider's list price
LangSmith Sandboxeslangchain
Phoneboxphonebox
Pricing
- vCPU, per hour
- LangSmith Sandboxes: $0.0576
- Phonebox: Not listed
- RAM, per GiB-hour
- LangSmith Sandboxes: $0.01845
- Phonebox: Not listed
- Storage
- LangSmith Sandboxes: $0.000123 per GiB-hour
- Phonebox: Not listed
- Free tier
- LangSmith Sandboxes: Credit of 8 LSU every month
- Phonebox: $2 starter credit, one time, no card
- Paid plan from
- LangSmith Sandboxes: Not listed
- Phonebox: Pay as you go
- Billing
- LangSmith Sandboxes: Per second
- Phonebox: Bundled machine time
Limits
- Max session
- LangSmith Sandboxes: Not listed
- Phonebox: 3 hours
- Idle stop
- LangSmith Sandboxes: After 10 minutes
- Phonebox: After 5 minutes
- Largest sandbox
- LangSmith Sandboxes: 16 vCPU · 64 GiB
- Phonebox: Not listed
- Concurrent sandboxes
- LangSmith Sandboxes: Not listed
- Phonebox: Up to 5
Platform
- Isolation
- LangSmith Sandboxes: Firecracker microVM
- Phonebox: Not listed
- GPU
- LangSmith Sandboxes: Not listed
- Phonebox: Not listed
- Snapshots
- LangSmith Sandboxes:
- Phonebox: Not listed
- Pause and resume
- LangSmith Sandboxes:
- Phonebox:
Developer
- SDKs
- LangSmith Sandboxes: Python, TypeScript
- Phonebox: TypeScript
- Integrations
- LangSmith Sandboxes: LangChain
- Phonebox: MCP
Trust
- License
- LangSmith Sandboxes: Not listed
- Phonebox: Not listed
- BYOC
- LangSmith Sandboxes: Enterprise plan
- Phonebox: Not listed
Hourly cost
One sandbox running for one hour
LangSmith Sandboxes
Phonebox
- 1 vCPU · 2 GiB
- LangSmith Sandboxes: $0.095
- Phonebox: Not listed
- 2 vCPU · 4 GiB
- LangSmith Sandboxes: $0.189
- Phonebox: Not listed
- 4 vCPU · 8 GiB
- LangSmith Sandboxes: $0.378
- Phonebox: Not listed
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
LangSmith Sandboxes fits when
- You use LangChain.
- You want the larger free credit: $8 against $2.
- You need snapshots.
- You need the sandboxes in your own cloud account.
Phonebox fits when
- You use MCP.
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