mirror of https://github.com/hwchase17/langchain synced 2024-11-08 07:10:35 +00:00

docs: langchain-anthropic README updates (#17684 )

# PR Message

- **Description:** This PR adds a README file for the Anthropic API in
the `libs/partners` folder of this repository. The README includes:
  - A brief description of the Anthropic package
  - Installation & API instructions
  - Usage examples
  
- **Issue:**
[17545](https://github.com/langchain-ai/langchain/issues/17545)
  
- **Dependencies:** None

Additional notes:
This change only affects the docs package and does not introduce any new
dependencies.

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>

2024-02-22 16:22:30 -08:00

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langchain-anthropic

This package contains the LangChain integration for Anthropic's generative models.

Installation

pip install -U langchain-anthropic

Chat Models

API Model Name	Model Family
claude-instant-1.2	Claude Instant
claude-2.1	Claude
claude-2.0	Claude

To use, you should have an Anthropic API key configured. Initialize the model as:

from langchain_anthropic import ChatAnthropicMessages
from langchain_core.messages import AIMessage, HumanMessage

model = ChatAnthropicMessages(model="claude-2.1", temperature=0, max_tokens=1024)

Define the input message

message = HumanMessage(content="What is the capital of France?")

Generate a response using the model

response = model.invoke([message])

For a more detailed walkthrough see here.

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