LangSmith

Infrastructure · Observability · Freemium · Solthar Score 85/100

Trace, evaluate and debug LLM apps so you can see why an answer went wrong.

“The debugger for applications that do not fail deterministically.” Solthar’s take

Key features

• Request tracing
• Eval datasets
• Prompt versioning

Strengths

• Essential once an app is live
• Framework agnostic

Trade-offs

• Most valuable inside the LangChain ecosystem

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