LLM, Model, ChatGPT — What's the Difference?

Untangle the words people use interchangeably and shouldn't. Learn what a "model" is, why ChatGPT, Copilot, Gemini and Claude are different front doors to the same kind of thing, and how to refer to them without sounding lost.

The full video walkthrough is coming soon. This lesson is short on purpose — you can finish it on a lunch break — and it ends with one small thing you actually build, keep, and reuse.