LangChain diagram maps the stack from app building to orchestration and evaluation
mdancho84 · x · 2026-07-23
A LangChain ecosystem diagram lays out the stack behind building, orchestrating, and evaluating LLM applications.
- LangChain is positioned as the app development framework, with prompts, models, LLMs, and API integrations as core building blocks.
- LangGraph sits in the middle for orchestration, emphasizing state management, conditional branching, and multi-step workflows.
- LangSmith is shown on the right as the observability and evaluation layer, covering monitoring, logs/traces, and evaluation.
- The graphic also highlights the shared primitives across the stack: RAG, tool calling, workflow orchestration, and guardrails + evaluation.
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