AnthropicLLM
caution
本示例介绍如何使用LangChain与Anthropic
模型进行交互。
安装
%pip install -qU langchain-anthropic
环境设置
我们需要获取一个 Anthropic API 密钥并设置 ANTHROPIC_API_KEY
环境变量:
import os
from getpass import getpass
if "ANTHROPIC_API_KEY" not in os.environ:
os.environ["ANTHROPIC_API_KEY"] = getpass()
使用方法
<!--IMPORTS:[{"imported": "AnthropicLLM", "source": "langchain_anthropic", "docs": "https://python.langchain.com/api_reference/anthropic/llms/langchain_anthropic.llms.AnthropicLLM.html", "title": "AnthropicLLM"}, {"imported": "PromptTemplate", "source": "langchain_core.prompts", "docs": "https://python.langchain.com/api_reference/core/prompts/langchain_core.prompts.prompt.PromptTemplate.html", "title": "AnthropicLLM"}]-->
from langchain_anthropic import AnthropicLLM
from langchain_core.prompts import PromptTemplate
template = """Question: {question}
Answer: Let's think step by step."""
prompt = PromptTemplate.from_template(template)
model = AnthropicLLM(model="claude-2.1")
chain = prompt | model
chain.invoke({"question": "What is LangChain?"})
'\nLangChain is a decentralized blockchain network that leverages AI and machine learning to provide language translation services.'