llama-index-llms-langchain 0.8.0


pip install llama-index-llms-langchain

  Latest version

Released: Mar 12, 2026

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Requires Python: <4.0,>=3.10

Classifiers

LlamaIndex Llms Integration: Langchain

Installation

  1. Install the required Python packages:

    %pip install llama-index-llms-langchain
    

Usage

Import Required Libraries

from langchain.llms import OpenAI
from llama_index.llms.langchain import LangChainLLM

Initialize LangChain LLM

To create an instance of LangChainLLM with OpenAI:

llm = LangChainLLM(llm=OpenAI())

Generate Streaming Response

To generate a streaming response, use the following code:

response_gen = llm.stream_complete("Hi this is")
for delta in response_gen:
    print(delta.delta, end="")

LLM Implementation example

https://docs.llamaindex.ai/en/stable/examples/llm/langchain/

Extras: None
Dependencies:
langchain (>=0.1.7)
llama-index-core (<0.15,>=0.13.0)