LangSmith Sandboxes vs Sandbox as a Service

LangSmith Sandboxes costs $0.0576 per vCPU-hour and Sandbox as a Service costs $0.045 per vCPU-hour. LangSmith Sandboxes runs Firecracker microVMs. Sandbox as a Service runs full VMs and limits a session to 24 hours.

Updated

LangSmith Sandboxes

Isolation
Firecracker microVM
Free tier
Credit of 8 LSU every month
Max session
Not listed

Sandbox as a Service

Isolation
Full VM
Free tier
$5 credit
Max session
24 hours

What is different

8 fields differ. The rest are the same or not listed.

LangSmith Sandboxes
Sandbox as a Service
vCPU, per hour
LangSmith Sandboxes: $0.0576
Sandbox as a Service: $0.045
RAM, per GiB-hour
LangSmith Sandboxes: $0.01845
Sandbox as a Service: Included
Free tier
LangSmith Sandboxes: Credit of 8 LSU every month
Sandbox as a Service: $5 credit
Billing
LangSmith Sandboxes: Per second
Sandbox as a Service: Bundled machine time
Largest sandbox
LangSmith Sandboxes: 16 vCPU · 64 GiB
Sandbox as a Service: 8 vCPU · 16 GiB
Isolation
LangSmith Sandboxes: Firecracker microVM
Sandbox as a Service: Full VM
SDKs
LangSmith Sandboxes: Python, TypeScript
Sandbox as a Service: Python, JavaScript / TypeScript
Integrations
LangSmith Sandboxes: LangChain
Sandbox as a Service: MCP

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
LangSmith Sandboxes: $0.0576
Sandbox as a Service: $0.045
RAM, per GiB-hour
LangSmith Sandboxes: $0.01845
Sandbox as a Service: Included
Storage
LangSmith Sandboxes: $0.000123 per GiB-hour
Sandbox as a Service: Not listed
Free tier
LangSmith Sandboxes: Credit of 8 LSU every month
Sandbox as a Service: $5 credit
Paid plan from
LangSmith Sandboxes: Not listed
Sandbox as a Service: Pay as you go
Billing
LangSmith Sandboxes: Per second
Sandbox as a Service: Bundled machine time

Limits

Max session
LangSmith Sandboxes: Not listed
Sandbox as a Service: 24 hours
Idle stop
LangSmith Sandboxes: After 10 minutes
Sandbox as a Service: Not listed
Largest sandbox
LangSmith Sandboxes: 16 vCPU · 64 GiB
Sandbox as a Service: 8 vCPU · 16 GiB
Concurrent sandboxes
LangSmith Sandboxes: Not listed
Sandbox as a Service: Up to 20

Platform

Isolation
LangSmith Sandboxes: Firecracker microVM
Sandbox as a Service: Full VM
GPU
LangSmith Sandboxes: Not listed
Sandbox as a Service: Not listed
Snapshots
LangSmith Sandboxes:
Sandbox as a Service:
Pause and resume
LangSmith Sandboxes:
Sandbox as a Service: Not listed

Developer

SDKs
LangSmith Sandboxes: Python, TypeScript
Sandbox as a Service: Python, JavaScript / TypeScript
Integrations
LangSmith Sandboxes: LangChain
Sandbox as a Service: MCP

Trust

License
LangSmith Sandboxes: Not listed
Sandbox as a Service: Not listed
BYOC
LangSmith Sandboxes: Enterprise plan
Sandbox as a Service: Not listed

Hourly cost

One sandbox running for one hour

LangSmith Sandboxes
Sandbox as a Service
1 vCPU · 2 GiB
LangSmith Sandboxes: $0.095
Sandbox as a Service: $0.045
2 vCPU · 4 GiB
LangSmith Sandboxes: $0.189
Sandbox as a Service: $0.090
4 vCPU · 8 GiB
LangSmith Sandboxes: $0.378
Sandbox as a Service: $0.180

Compute only, at list rates.

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Which one fits

Based on the fields above

LangSmith Sandboxes fits when

  • You want each sandbox in its own microVM.
  • You use LangChain.
  • You want the larger free credit: $8 against $5.
  • You need pause and resume.

Sandbox as a Service fits when

  • You want each sandbox to be a full VM.
  • You use MCP.
  • You want the lower list price: $0.090 against $0.189 an hour for 2 vCPU and 4 GiB.

More comparisons

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