OpenAI. The OpenAI product and engineering team — Thomas Dimson, Nick Turley, Michelle Pokrass, Olivier Godement — walking through how GPTs work, what the three pieces (instructions, actions, knowledge) actually do, and the design choices behind them. Useful when the article's "just try it" advice has stuck and you want to understand the seams before you stretch the tool further.
Tool interfaces, pricing and product names may have changed. Focus on the workflow pattern, then verify the current UI and settings before using it in real work.
Understand how Custom GPT instructions, actions and knowledge files fit together before pushing a simple assistant beyond the beginner workflow.
Continue through the same learning path with the next curated companion videos.