LlamaIndex vs LangChain vs Haystack — RAG Framework Comparison 2026
LlamaIndex 0.14, LangChain 1.3, and Haystack 2.30 tested side by side: code complexity, the langchain-community sunset warning, and a clear decision guide.
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langchain
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LangGraph Multi-Agent Systems: Production-Grade Orchestration
Build stateful multi-agent AI systems with LangGraph. Learn graph-based orchestration, deployment patterns, and real-world use cases from LinkedIn and Uber.