These tools integrates with

LangfusevsRAGAS

OSS LLM engineering platform (acquired by ClickHouse, Jan 2026) versus RAG pipeline evaluation framework

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Choose Langfuse when…

  • •You want open-source LLM observability
  • •Self-hosting your tracing stack is important
  • •You need cost tracking across models and users

Choose RAGAS when…

  • •You're evaluating a RAG pipeline specifically
  • •Context relevance and answer faithfulness are your key metrics
  • •You want an OSS eval framework focused on retrieval quality

Side-by-side comparison

Field
Langfuse
RAGAS
Category
Observability
Prompt & Eval
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $59/mo
—
GitHub Stars
⭐ 7,000
⭐ 7,000
Health
●95 — Active
●70 — Active

Langfuse

Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with broad framework support. Acquired by ClickHouse in January 2026; OSS core continues with deeper ClickHouse-backed analytics.

Website ↗GitHub ↗

RAGAS

Evaluates retrieval-augmented generation pipelines on faithfulness, answer relevancy, context precision, and recall.

Website ↗GitHub ↗

Shared Connections3 tools both integrate with

LangChainLlamaIndexDeepEval

Only Langfuse (28)

Claude CodeCrewAICursorLangGraphOpenHandsAutoGenDifyMastraAgnoLiteLLM

Only RAGAS (2)

LangfuseTruLens

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See how Langfuse and RAGAS fit into the bigger picture — 235 tools, 543 relationships, all mapped.

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