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How ChatGPT really works, explained for non-technical people

Guodong (Troy) Zhao
Bootcamp
Published in
12 min readFeb 21, 2023

The release of ChatGPT by OpenAI at the end of last year has been phenomenal — even my grandma is asking about it. Its capabilities to generate human-like language have inspired people to experiment with its potential in various products. Its wildly successful launch even put pressure on tech giants like Google to rush to release their own version of ChatGPT.

But let’s be honest, for non-technical product managers, designers, and entrepreneurs, the inner workings of ChatGPT may seem like a magical black box. Don’t worry! In this blog, I’ll try to explain the technology and the model behind ChatGPT as simply as possible. By the end of this post, you’ll have a good understanding of what ChatGPT can do, and how it performs its magic.

The transformer & GPT timeline

Before we dive deep into the actual mechanism of ChatGPT, let’s take a quick look at the timeline of the development of the transformer architecture of language models and the different versions of GPT, so that you can have a better sense of how things evolved into the ChatGPT we have today.

Timeline of Transformers, GPT, and ChatGPT. Image by the author.
  • 2015. OpenAI was founded by Sam Altman, Elon Musk, Greg Brockman, Peter Thiel, and others. OpenAI develops many different AI models other than GPT.
  • 2017. Google published the…

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Bootcamp
Bootcamp

Published in Bootcamp

From idea to product, one lesson at a time. To submit your story: https://tinyurl.com/bootspub1

Guodong (Troy) Zhao
Guodong (Troy) Zhao

Written by Guodong (Troy) Zhao

💻 Product Manager | AI | HealthTech | EdTech | CMU HCII Alum | Curious Learner | https://www.linkedin.com/in/guodongzhao/

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