Compare LangSmith with alternatives
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Comparing LangSmith, Braintrust, Langfuse
| Attribute | LangSmith | Braintrust | Langfuse |
|---|---|---|---|
| What it is | LangSmith is LangChain's hosted platform for tracing, evaluating and monitoring LLM apps. It works closely with LangGraph and was used alongside it in the Minimal support build. | Braintrust is a hosted platform for evals and tracing of AI apps. Its data plane can run in your own cloud, but only on the Enterprise plan. | Langfuse is an open-source LLM engineering platform for tracing, evals and datasets. You can use the hosted cloud or self-host it, and it supports OpenTelemetry. |
| Category | Observability | Observability | Observability |
| Type | Platform | Platform | Platform |
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| Pricing | FreemiumDeveloper $0/seat (5k base traces/month); Plus $39/seat/month (10k traces).As of | FreemiumStarter $0; Pro $249/month.As of | FreemiumCloud Hobby free (50k units/month); Pro $199/month; self-hosting supported.As of |
| License | Proprietary platformChecked | License not yet reviewed | Open source (MIT)except the ee/ directories (enterprise modules), which need a commercial licenseChecked |
| Layers | Evals | Evals | Evals |
| Last verified |