text: consisting of the non-profit OpenAI Incorporated
  and its for-profit subsidiary corporation OpenAI Limited Partnership.
  OpenAI conducts AI research with the declared intention of promoting and developing a friendly AI.
  OpenAI systems run on an Azure-based supercomputing platform from Microsoft.The OpenAI API is powered by a diverse set of models with different capabilities and price points.ChatGPT is the Artificial Intelligence (AI) chatbot developed by OpenAI.Installation and Setupâ€‹Install the Python SDK withpip install openaiGet an OpenAI api key and set it as an environment variable (OPENAI_API_KEY)If you want to use OpenAI's tokenizer (only available for Python 3.9+), install itpip install tiktokenLLMâ€‹from langchain.llms import OpenAIIf you are using a model hosted on Azure, you should use different wrapper for that:from langchain.llms import AzureOpenAIFor a more detailed walkthrough of the Azure wrapper, see this notebookText Embedding Modelâ€‹from langchain.embeddings import OpenAIEmbeddingsFor a more detailed walkthrough of this, see this notebookTokenizerâ€‹There are several places you can use the tiktoken tokenizer. By default, it is used to count tokens