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Build Your Own AI Assistant with GPT-4: A Step-by-Step Tutorial

1. Setting Up Your Development Environment

• Install Python 3.8+ and the required libraries: openai and python-dotenv using pip.
• Create a dedicated project folder and set up a virtual environment to keep dependencies isolated.
• Sign up for an OpenAI account, generate an API key, and store it in a .env file for security.

2. Understanding the OpenAI API Basics

• Learn how GPT models process prompts and generate completions using tokens.
• Get familiar with the Chat Completions endpoint and the structure of the messages array (system, user, assistant roles).

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