PILLAR_CMP-FRAMEWORKS LIVE CATEGORY FRAMEWORKS · 5 ITEMS

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5 frameworks side-by-side on consistent axes. Per-axis values carry lastCheckedAt + confidence + source.

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// AXIS	LangChainGeneral-purpose LLM orchestration framework	LlamaIndexRAG-first agent framework
Language	Python · TypeScript checked 2026-05-07 · high confidence	Python · TypeScript checked 2026-05-07 · high confidence
Mcp Support	via adapter MCP servers can be wrapped as LangChain tools; integration improving but not yet first-class.	yes MCP server integration is straightforward; LlamaIndex tools wrap MCP servers cleanly.
Complexity	high Many abstractions; unwinding them when something breaks takes effort.	medium
Leads At	Largest ecosystem of integrations Mature deployment patterns LangGraph for multi-agent orchestration	Best-in-class RAG primitives Document loaders + indexes Workflow API for agent orchestration
Lags At	Documentation churn (APIs shift between minor versions) Sometimes you fight the abstraction more than the problem	Less general-purpose than LangChain for non-RAG agents
Verdict	Default if you need many integrations out of the box and have the team capacity to manage abstraction depth.	Default when retrieval is the dominant pattern. Less compelling for pure tool-call agents.

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Verdicts are scoped to a use-case (``default for X'' / ``use when Y''). Not winner / loser.
Every axis carries lastCheckedAt and confidence. Pricing in particular drifts — we date it explicitly.