These tools integrates with
LangWatchvsLangChain
LLM observability and evaluation with OpenTelemetry support versus The leading LLM app framework
Compare interactively in Explore →Choose LangWatch when…
- •You want OpenTelemetry-native LLM tracing without vendor lock-in
- •You need combined tracing and automated evaluation in one platform
- •You prefer self-hosting your observability stack
Choose LangChain when…
- •You want a broad, flexible LLM orchestration toolkit
- •You need integrations with many tools and data sources
- •You're prototyping or exploring LLM app patterns
Side-by-side comparison
Field
LangWatch
LangChain
Category
Observability
Pipelines & RAG
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $99/mo
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GitHub Stars
⭐ 2,000
⭐ 93,000
Health
●70 — Active
●100 — Active
LangWatch
Open-source LLM observability and evaluation platform with OpenTelemetry-native tracing. Provides trace visualization, automated LLM-as-judge evaluations, dataset management, and prompt versioning. Self-hostable with a managed cloud option.
Shared Connections1 tools both integrate with
Only LangWatch (2)
Arize PhoenixLangChain
Only LangChain (32)
OpenHandsCrewAIAutoGenSemantic KernelLangSmithLlamaIndexQdrantChromaPineconeWeaviate
Explore the full AI landscape
See how LangWatch and LangChain fit into the bigger picture — 235 tools, 543 relationships, all mapped.