LangGraph now runs everything at LangChain as team bets on deterministic agent infrastructure

LangChain · x · 2026-11-05

LangChain engineer Caspar revisits his year-old piece declaring "LangGraph isn't going anywhere"—today LangGraph is the runtime under everything at LangChain, including MDA. He argues the framework's API stability is a testament to its robustness and timelessness.

Colleague Josh Rosen wrote a piece on why deterministic layers will become standard agent infrastructure—the bet LangChain made early. LangChain also launched a new unified docs site for LangChain and LangGraph OSS with tutorials, calling fluency in the framework "an insanely useful skill."

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