LangChain

Framework (and LangGraph) for building LLM agents.

LangChain is one of the most widely used open-source frameworks for building LLM applications and agents, alongside LangGraph for stateful agent workflows. The company now describes it as an open agent engineering platform. The frameworks are free; LangSmith is its paid platform.

Category
Frameworks
Pricing
Open Source
Website
langchain.com
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