Alternatives to LangSmith

LangSmith and 1 alternative tool evaluated on the Tekai technology radar.

LangSmith

Subject

Observability and evaluation platform for LLM applications, providing tracing, prompt testing, and experiment comparison.

vendor Proprietary

assess

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Alternatives

Langfuse

Open-source LLM engineering platform (MIT-licensed, 21k+ GitHub stars) covering observability traces, evaluation, prompt management, and datasets; self-hostable in minutes; acquired by ClickHouse in January 2026.

open-source MIT

trial

Comparison Summary

Tool	Radar	Type	License
LangSmith	assess	vendor	Proprietary
Langfuse	trial	open-source	MIT

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