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Tygo Cover > AI > What is ChatGPT? The Ultimate Guide

What is ChatGPT? The Ultimate Guide

You've heard the name everywhere, but what is ChatGPT really? This simple guide explains everything about the AI that changed the world, from how it works to how you can use it.

Owais Makkabi
Last updated: October 28, 2025 1:46 am
Owais Makkabi
AI
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4 Min Read
A guide explaining what is ChatGPT.

If you have one question in tech today, it’s likely “what is ChatGPT?” In just a short time, this powerful AI chatbot from OpenAI has changed how we write, code, and think about the internet. It gained over 100 million users in just two months, making it the fastest-growing app in history.

But what is ChatGPT behind the hype? This guide breaks down everything you need to know.

So, What is ChatGPT?

At its simplest, what is ChatGPT is a highly advanced AI chatbot. The “GPT” stands for Generative Pre-trained Transformer.

Let’s break that down:

  • Generative: It creates new, original text. It’s not just repeating information it found. This is a key feature of Generative AI.
  • Pre-trained: It was “trained” on a massive amount of text and code from the internet. This is how it learned grammar, facts, reasoning abilities, and conversation styles.
  • Transformer: This is the specific type of AI architecture (a neural network) that allows it to understand context and the relationship between words in a sentence.

Unlike old chatbots, you can have a natural, free-flowing conversation with it.

How Does ChatGPT Work?

When you ask, “how does ChatGPT work?” the answer is a Large Language Model (LLM).

Think of an LLM as a super-powered autocomplete. When you give it a prompt, it doesn’t “think” of an answer. Instead, it analyzes your words and, based on its training, calculates a sequence of words that are most likely to come next.

It’s a “prediction engine” for language. Because it has been trained on so much data, its predictions are incredibly accurate, coherent, and sound human.

A diagram showing how does ChatGPT work & what is chatgpt

Who Made ChatGPT?

Who made ChatGPT is a company called OpenAI. Based in San Francisco, OpenAI started as a non-profit research lab and is now one of the most influential AI companies in the world. It is led by CEO Sam Altman and is heavily backed by Microsoft. OpenAI is also the creator of other famous AI models like DALL-E (image generator) and Sora (video generator).

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What Are the Best Uses of ChatGPT?

The real power of this tool is its versatility. Here are just a few common uses of ChatGPT:

  • Content Creation: Writing emails, blog posts, social media updates, and marketing copy.
  • Coding Assistance: Writing code, finding bugs, and explaining complex programming concepts.
  • Learning: Summarizing long articles, explaining difficult topics (like Artificial Intelligence), and practicing new languages.
  • Brainstorming: Generating new ideas for a business, a party, or a creative project.
  • Personal Assistant: Drafting a resume, planning a trip, or creating a workout plan.

The list of uses of ChatGPT is nearly endless and expands with every new update.


Frequently Asked Questions (FAQ)

Is ChatGPT free to use?

Yes, OpenAI offers a free version of ChatGPT that is very powerful. They also offer paid subscription plans (like ChatGPT Plus) that provide access to more advanced models (like GPT-4), faster response times, and new features.

Is the information from ChatGPT always accurate?

No. This is extremely important. ChatGPT can “hallucinate,” which means it can confidently state incorrect information as if it were a fact. Always verify any critical information, like data or historical facts, from a reliable source.

Can ChatGPT understand context?

Yes. One of its key features is its ability to remember what you said earlier in the conversation. You can ask follow-up questions, and it will understand the context, making it feel like a real conversation.

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ByOwais Makkabi
Lead Analyst, Software, Tech, AI & Entrepreneurship
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Owais Makkabi is a SaaS entrepreneur and AI technology analyst bridging Pakistan's emerging tech scene with Silicon Valley, San Francisco innovation. A former Full Stack Developer turned business builder, he combines deep technical expertise with entrepreneurial experience to decode the rapidly evolving AI landscape.
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