What is GPT?

Kushagra MathurKushagra Mathur
2 min read

Have you ever talked to a really smart parrot that doesn’t just copy words but can actually answer questions, tell stories, or even help with homework?

That’s kind of what GPT is — except instead of being a parrot, it’s a super-smart computer brain!

GPT stands for:

  • G → Generative = It can create new things (like stories, poems, or answers).

  • P → Pre-trained = It has already been taught a lot of stuff before you even use it.

  • T → Transformer = The special technique it uses to understand and write language.

Why is GPT like a kid who read the whole library?

Imagine a kid who went to the library and read millions of books, stories, and articles.
Now, whenever you ask them something, they don’t just repeat lines. Instead, they:

  1. Remember patterns of how words usually go together.

  2. Guess the next word in the sentence really well.

Example:
If you say: “Once upon a …”
GPT will likely say: “time” — because it has seen that phrase many times!

How does GPT work? (Super Simple)

Think of GPT like building with LEGO blocks.

  • Each word or piece of a word is like a LEGO block.

  • GPT learns how to put the blocks together in the right order to make sentences that make sense.

It doesn’t really “know” things like humans do, but it’s amazing at pattern matching.

Why is it called a Transformer?

The word Transformer sounds like a robot, and that’s kind of right!

A Transformer is the special type of computer model that GPT uses. It’s really good at:

  • Paying attention to important words in your sentence.

  • Understanding context (like knowing whether “bat” means the animal or the cricket bat).

Why is GPT useful?

Because it can:

✅ Answer your questions
✅ Help you write emails or homework
✅ Tell stories, poems, and jokes
✅ Translate languages
✅ Even act like a teacher or friend!

It’s like having a super helpful buddy who read the entire internet (almost).

The Big Idea

GPT = A giant library-trained brain that guesses words really well, puts them together, and creates human-like text.

It doesn’t think or feel, but it’s amazing at helping us with language.

In short: GPT is like your friendly storytelling robot friend who learned everything from books, the internet, and more — and now it helps YOU create magic with words.

0
Subscribe to my newsletter

Read articles from Kushagra Mathur directly inside your inbox. Subscribe to the newsletter, and don't miss out.

Written by

Kushagra Mathur
Kushagra Mathur

Full-stack developer passionate about building scalable web applications and experimenting with Generative AI. I enjoy turning ideas into products, while constantly learning and sharing my journey with the dev community.