How to Build a Custom AI Assistant with GPT-4: A Step-by-Step Tutorial

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⏱ 1 min read Jun 18, 2026 By Theo Grant
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Last updated: August 21, 2026



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How to Build a Custom AI Assistant with GPT-4: A Step-by-Step Tutorial

1. Prerequisites and Setting Up Your Environment

  • Install Python 3.8+ and set up a virtual environment.
  • Get your OpenAI API key and set it as an environment variable.
  • Install required libraries: openai, python-dotenv, and streamlit.

2.

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Theo Grant
Written byTheo Grant

Theo Grant explores real-world AI applications, automation workflows, and hands-on tutorials at AI In Action Hub. Theo breaks down complex AI concepts into practical guides that help professionals and creators leverage AI in their daily work.

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