These tools integrates with

LangChainvsWeaviate

The leading LLM app framework versus Cloud-native vector search engine

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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

Choose Weaviate when…

  • You want a knowledge graph alongside vector search
  • Multi-modal search (text + image) is needed
  • You need hybrid keyword + vector search

Side-by-side comparison

Field
LangChain
Weaviate
Category
Pipelines & RAG
LLM Infrastructure
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: Usage-based
GitHub Stars
93,000
11,000

LangChain

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

Weaviate

Open-source vector database with hybrid search (vector + BM25), multi-modal support, and native GraphQL API. Strong enterprise adoption.

Shared Connections3 tools both integrate with

Only LangChain (21)

OpenHandsCrewAIAutoGenLangGraphSemantic KernelLangSmithChromaWeaviatepgvectorLiteLLM

Only Weaviate (2)

LangChainMilvus

Explore the full AI landscape

See how LangChain and Weaviate fit into the bigger picture — 123 tools, 304 relationships, all mapped.

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