These tools competes with

HaystackvsLangChain

Composable NLP and LLM pipeline framework versus The leading LLM app framework

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Choose Haystack when…

  • You're building search-first or RAG pipelines in Python
  • Deepset's enterprise search DNA fits your use case
  • You need flexible document processing pipelines

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
Haystack
LangChain
Category
Pipelines & RAG
Pipelines & RAG
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
deepset Cloud: Custom
GitHub Stars
18,000
93,000
Health
85 Active
85 Active

Haystack

deepset's open-source framework for building production NLP and LLM pipelines. Strong focus on RAG, search, and document AI use cases.

LangChain

Most widely used framework for building LLM applications. Chains, agents, RAG pipelines, and deep integrations with 300+ tools.

Shared Connections3 tools both integrate with

Only Haystack (1)

LangChain

Only LangChain (26)

OpenHandsCrewAIAutoGenSemantic KernelLangSmithChromaWeaviatepgvectorLiteLLMLangfuse

Explore the full AI landscape

See how Haystack and LangChain fit into the bigger picture — 207 tools, 452 relationships, all mapped.

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