LangChain

pip install langchain-openai

from langchain_openai import ChatOpenAI

llm = ChatOpenAI(
    model="zai-org/GLM-5.3",
    base_url="https://api.kurrens.ai/v1",
    api_key="<KURRENS_API_KEY>",
    temperature=0.4,
)

print(llm.invoke("What makes an inference provider fast?").content)

Tool binding (llm.bind_tools(...)) and structured output (llm.with_structured_output(...)) work with models that support tool calling and structured outputs.