LangSmith Sandboxes vs Shellbox

LangSmith Sandboxes costs $0.0576 per vCPU-hour and Shellbox costs $0.01 per vCPU-hour. LangSmith Sandboxes runs Firecracker microVMs. Shellbox runs Firecracker microVMs and has no session limit.

Updated

LangSmith Sandboxes

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

Shellbox

Isolation
Firecracker microVM
Free tier
Not listed
Max session
No limit

What is different

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

LangSmith Sandboxes
Shellbox
vCPU, per hour
LangSmith Sandboxes: $0.0576
Shellbox: $0.01
RAM, per GiB-hour
LangSmith Sandboxes: $0.01845
Shellbox: Included
Storage
LangSmith Sandboxes: $0.000123 per GiB-hour
Shellbox: A stopped box costs $0.50 per x1 slot per month
Billing
LangSmith Sandboxes: Per second
Shellbox: Bundled machine time
Idle stop
LangSmith Sandboxes: After 10 minutes
Shellbox: After 2 minutes
Largest sandbox
LangSmith Sandboxes: 16 vCPU · 64 GiB
Shellbox: 16 vCPU · 32 GiB
Integrations
LangSmith Sandboxes: LangChain, MCP
Shellbox: Claude Code

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
LangSmith Sandboxes: $0.0576
Shellbox: $0.01
RAM, per GiB-hour
LangSmith Sandboxes: $0.01845
Shellbox: Included
Storage
LangSmith Sandboxes: $0.000123 per GiB-hour
Shellbox: A stopped box costs $0.50 per x1 slot per month
Free tier
LangSmith Sandboxes: Credit of 8 LSU every month
Shellbox: Not listed
Paid plan from
LangSmith Sandboxes: Pay as you go
Shellbox: Pay as you go
Billing
LangSmith Sandboxes: Per second
Shellbox: Bundled machine time

Limits

Max session
LangSmith Sandboxes: Not listed
Shellbox: No limit
Idle stop
LangSmith Sandboxes: After 10 minutes
Shellbox: After 2 minutes
Largest sandbox
LangSmith Sandboxes: 16 vCPU · 64 GiB
Shellbox: 16 vCPU · 32 GiB
Concurrent sandboxes
LangSmith Sandboxes: Not listed
Shellbox: Up to 16

Platform

Isolation
LangSmith Sandboxes: Firecracker microVM
Shellbox: Firecracker microVM
GPU
LangSmith Sandboxes: Not listed
Shellbox: Not listed
Snapshots
LangSmith Sandboxes:
Shellbox:
Pause and resume
LangSmith Sandboxes:
Shellbox:

Developer

SDKs
LangSmith Sandboxes: Python, TypeScript
Shellbox: Not listed
Integrations
LangSmith Sandboxes: LangChain, MCP
Shellbox: Claude Code

Trust

License
LangSmith Sandboxes: Not listed
Shellbox: Not listed
BYOC
LangSmith Sandboxes: Enterprise plan
Shellbox: Not listed

Hourly cost

One sandbox running for one hour

LangSmith Sandboxes
Shellbox
1 vCPU · 2 GiB
LangSmith Sandboxes: $0.095
Shellbox: $0.010
2 vCPU · 4 GiB
LangSmith Sandboxes: $0.189
Shellbox: $0.020
4 vCPU · 8 GiB
LangSmith Sandboxes: $0.378
Shellbox: $0.040

Compute only, at list rates.

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Which one fits

Based on the fields above

LangSmith Sandboxes fits when

  • You use LangChain or MCP.
  • You need the sandboxes in your own cloud account.
  • You need a sandbox larger than 16 vCPU · 32 GiB.
  • You need SOC 2 Type II, HIPAA and GDPR.

Shellbox fits when

  • You use Claude Code.
  • You want the lower list price: $0.020 against $0.189 an hour for 2 vCPU and 4 GiB.

More comparisons

See all comparisons

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