langchain-qwen3 0.1.0

An integration package connecting Qwen3 and LangChain

langchain-qwen3

This package contains the LangChain integration with Qwen3

Installation

pip install -U langchain-qwen3

And you should configure credentials by setting the following environment variables:

• TODO: fill this out

Chat Models

ChatQwen3 class exposes chat models from Qwen3.

from langchain_qwen3 import ChatQwen3

llm = ChatQwen3()
llm.invoke("Sing a ballad of LangChain.")

Embeddings

Qwen3Embeddings class exposes embeddings from Qwen3.

from langchain_qwen3 import Qwen3Embeddings

embeddings = Qwen3Embeddings()
embeddings.embed_query("What is the meaning of life?")

LLMs

Qwen3LLM class exposes LLMs from Qwen3.

from langchain_qwen3 import Qwen3LLM

llm = Qwen3LLM()
llm.invoke("The meaning of life is")