AI21 labs integrations

AI21 Labs is a company specializing in Natural Language Processing (NLP), which develops AI systems that can understand and generate natural language.

This page covers how to use the AI21 ecosystem within LangChain.

Installation and setup

• Get an AI21 api key and set it as an environment variable (AI21_API_KEY)
• Install the Python package:

pip install langchain-ai21

uv add langchain-ai21

Chat models

AI21 chat

See the AI21 docs.

from langchain_ai21 import ChatAI21

Deprecated features

:::caution The following features are deprecated. :::

AI21 LLM

from langchain_ai21 import AI21LLM

AI21 contextual answer

from langchain_ai21 import AI21ContextualAnswers

Text splitters

AI21 Semantic text splitter

from langchain_ai21 import AI21SemanticTextSplitter