Why it matters

Python framework choice shapes app dev. Understanding shapes selection.

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The architecture

LangChain: broad + community.

LlamaIndex: RAG-focused.

DSPy: declarative + optim.

Others: specialized niches.

Python LLM framework spectrumLangChainbroadLlamaIndexRAG-focusedDSPy + othersdeclarative + nichesCommunity + docs + integrations vary; try before committing
Python LLM frameworks.
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How it works end to end

LangChain broadest.

LlamaIndex RAG-specialized.

DSPy programmatic.

Semantic Kernel Microsoft.