Perplexity is the most powerful way to search the internet with unlimited Pro Search, upgraded AI models, unlimited file upload, image generation, and API credits. You can check a list of available models.

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Installation and Setup

Install the Perplexity x LangChain integration package: 
pip install langchain-perplexity
Get your API key from here.

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Chat models

See a variety of usage examples here. 
from langchain_perplexity import ChatPerplexity