Agent Frameworks
How do you use Claude with LangChain?
QUICK ANSWER
To use Claude in LangChain, install the '@langchain/anthropic' package (JS/TS) or 'langchain-anthropic' (Python), and initialize the ChatAnthropic model class.
Python Setup
# Install via pip
# pip install langchain-anthropic
from langchain_anthropic import ChatAnthropic
model = ChatAnthropic(
model="claude-3-5-sonnet-20241022",
temperature=0
)
response = model.invoke("Hello!")
Verified against: LangChain Anthropic Python v0.3.0