LangFuse vs LangSmith

LangFuse and LangSmith are both building tools for AI teams. Compare pricing, hosting options, and product depth below.

LangFuse

https://langfuse.com

Langfuse is a solution for startups and individuals but lacks essential privacy features for large companies.

Pro plan: $59/mo

LangSmith

https://smith.langchain.com

LangSmith is a solution for bigger companies, and they’ve got the rooster to prove it. Because of the complexity, they’re not a good fit for smaller businesses and startups.

Read detailed review

Pro plan: $39/mo

Feature comparison

FeatureLangFuseLangSmith
Self-hostableYesOnly for very large companies on 6-figure plans.
Prompt managementYesYes
Prompt playgroundYesYes
LLM analyticsYesYes
Feedback trackingYesYes
Agent tracingYesYes
Score conversationsYesYes
Real-time evaluationsYes
ExportsYesYes
User trackingBasic identification capabilities.No
PII maskingNoRequires custom code and complicated configuration.
Custom dashboardsNoYes
Pro plan$59/mo$39/mo

LangFuse

Pros
  • Intuitive dashboard
  • Replay user conversations
  • Topic & language classifications
  • Privacy features like PII masking & local eval models
  • Custom dashboards
  • Complete self-hosted version
Cons
  • Confusing dashboard
  • Higher starting price for Pro plan
  • No chatbot analytics features
  • Features missing in the self-hosted version
  • Lack of privacy features for data-sensitive companies

LangSmith

Pros
  • Open-source
  • Beautiful & modern UI
  • Stable product
  • Centered around chatbot usecases
  • Stellar support for everyone
  • Bootstrapped company
Cons
  • Super confusing dashboard
  • Requires a lot of configuration
  • Complicated integration outside of LangChain
  • Enterprise plans start at $75k
  • No support for startups and individuals

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Building an AI chatbot?

Open-source GenAI monitoring, prompt management, and magic.

Open Source

Self Hostable

1-line Integration

Prompt Templates

Chat Replays

Analytics

Topic Classification

Agent Tracing

Custom Dashboards

Score LLM responses

PII Masking

Feedback Tracking

Open Source

Self Hostable

1-line Integration

Prompt Templates

Chat Replays

Analytics

Topic Classification

Agent Tracing

Custom Dashboards

Score LLM responses

PII Masking

Feedback Tracking