from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4.1-mini", temperature=0)

topics = [
    "LangChain batching",
    "AI prompt evaluation",
    "model latency",
]

for topic in topics:
    response = model.invoke(f"Explain {topic} in one short sentence.")
    print(f"{topic}: {response.content}")