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AI Mastery: LLMs Explained with Math (Transformers, Attention Mechanisms & More)

Unlock the secrets behind transformers like GPT and BERT. Learn tokenization, attention mechanisms, positional encodings, and embeddings to build and innovate with advanced AI. Excel in the field of machine learning and become a top-tier AI expert.

5 hours 0 projects 34 + lessons

Rated 4.8 out of 5 on Trustpilot

Rated 4.8 out of 5 on Trustpilot

28 Days

Average time students take to complete this course.

instructor
Taught by: Patrik Szepesi
Last updated: April 2026
Our students are getting hired by top companies. We can help you too.

What you'll learn

  • How tokenization transforms text into model-readable data
  • The inner workings of attention mechanisms in transformers
  • How positional encodings preserve sequence data in AI models
  • The role of matrices in encoding and processing language
  • Building dense word representations with multi-dimensional embeddings
  • Differences between bidirectional and masked language models
  • Practical applications of dot products and vector mathematics in AI
  • How transformers process, understand, and generate human-like text

What Are Transformers?

So many millennia ago the AutoBots and Decepticons fought over Cybertron...

Oh wait, sorry. Wrong Transformers.

The Transformer architecture is a foundational model in modern artificial intelligence, particularly in natural language processing (NLP). Introduced in the seminal paper "Attention Is All You Need" by Vaswani et al. in 2017, it is one of the most important technological breakthroughs that gave rise to the Large Language Models you know today like ChatGPT and Claude.

What makes Transformers special is that instead of reading word-by-word like old systems (called recurrent models), the Transformer looks at the whole sentence all at once. It uses something called attention to figure out which words are important to focus on for each task. For example, if you're translating "She opened the box because it was her birthday," the word "it" might need special attention to understand it refers to "the box."

Why Learn The Transformer Architecture?

1. They Power Modern AI Applications Transformers are the backbone of many AI systems today. Models like GPT, BERT (used in search engines like Google), and DALL·E (image generation) are all based on Transformers. If you're interested in these technologies, understanding Transformers gives you insight into how they work.

2. They Represent AI’s Cutting Edge Transformers revolutionized AI, shifting from older methods like RNNs (Recurrent Neural Networks) to a whole new way of processing information. Learning them helps you understand why this shift happened and how it unlocked a new level of AI capability.

3. They’re Widely Used in Research and Industry Whether you want to work in academia, build AI products, or explore mechanistic interpretability (which you’ve expressed interest in), Transformers are often the core technology. Understanding them can open doors to exciting projects and careers.

6. They’re Fun and Intellectually Challenging The concept of self-attention and how Transformers handle context is elegant and powerful. Learning about them can feel like solving a fascinating puzzle. It’s rewarding to see how they "think" and to realize why they’re so effective.

Why This Transformers Course?

Well, because it teaches you advanced, dense material in a clear and enjoyable way - which is no easy feat!

But of course we're biased. So here's a breakdown of what's covered in this Advanced AI course so that you can make up your own mind:

Introduction to Tokenization
Learn how transformers convert raw text into a processable format using techniques like the WordPiece algorithm. Discover the importance of tokenization in enabling language understanding.

Foundations of Transformer Architectures
Understand the roles of key, query, and value matrices in encoding information and facilitating the flow of data through a model.

Mechanics of Attention Mechanisms
Dive into multi-head attention, attention masks, and how they allow models to focus on relevant data for better context comprehension.

Positional Encodings
Explore how models maintain the sequence of words in inputs using cosine and sine functions for embedding positional data.

Bidirectional and Masked Language Models
Study the distinctions and applications of bidirectional transformers and masked models in language tasks.

Vector Mathematics and Embeddings
Master vectors, dot products, and multi-dimensional embeddings to create dense word representations critical for AI tasks.

Applications of Attention and Encoding
Learn how attention mechanisms and positional encoding come together to process and generate coherent text.

Capstone Knowledge for AI Innovation
Consolidate your understanding of transformer algorithms to develop and innovate with state-of-the-art AI tools.

What Else Should I Know?

By becoming a ZTM member you'll not only get access to all our bootcamp courses, bytes, and projects.

But you’ll also get to join our exclusive live online community classroom to learn alongside thousands of students, alumni, mentors, TAs and Instructors.

Most importantly, you'll be learning from an industry professional (Patrik) that has actual real-world experience as an AI & Machine Learning Engineer. He teaches you the exact strategies and techniques he uses in his role.

Finally, as with all ZTM courses, this course is a living thing. It will be constantly updated as the landscape changes so you can use it as your go-to guide for using Amazon SageMaker now and throughout your career.

Join 1,000s of Zero To Mastery graduates that have gotten hired and are now working at companies like Google, Tesla, Amazon, Apple, IBM, JP Morgan, Facebook, Shopify + other top tech companies.

They come from all different backgrounds, ages, and experiences. Many even started as complete beginners.

So there's no reason it can't be you too.

And you have nothing to lose. Because you can start learning right now and if this course isn't everything you expected, we'll refund you 100% within 30 days. No hassles and no questions asked.

Who You Will Learn With

You're getting more than just a course

Our instructors, TAs, Mentors, Alumni, and fellow students go above and beyond to help guide you and ensure you're on the right path to achieve your goals. Our private ZTM Discord server is a key factor in taking your skills, confidence and career to the next level.

Course curriculum

To make sure this course is a good fit for you, you can start learning AI for free right now by clicking any of the PREVIEW links below.

5 sections34 lessons5 hours total length

Introduction

2 lectures · 3min
2 lectures · 3min

AI Mastery: LLMs Explained with Math·3:00

3:00
PREVIEW

Exercise: Meet Your Classmates and Instructor

PREVIEW

Introduction to Tokenizations and Encodings

6 lectures · 59min
6 lectures · 59min

Embeddings and Positional Encodings

9 lectures · 1hr 14min
9 lectures · 1hr 14min

Attention Mechanism, Multi Head Attention, Masked Language Learning and More

16 lectures · 2hr 37min
16 lectures · 2hr 37min

Where To Go From Here?

1 lecture
1 lecture

Who is Zero To Mastery for?

You'll fit right in if:

You're struggling to make progress using free tutorials that aren't giving you the structure or clear path to achieving your goals.
You don't want to learn alone. You want personalized feedback, support, and motivation from instructors and mentors and want to be part of a supportive community of like-minded individuals.
You want to learn by doing. You're excited to embrace the struggle of making mistakes that comes with building fun real-world projects you'll be proud of.
You're sick of outdated & boring tutorials. We pride ourselves on having the most up-to-date (and fun!) courses in the industry so that you're not wasting your time and only learning what matters right now.
You can't afford to spend $8,000+ on over priced bootcamps and colleges. We got you. We'll help you go from zero to hired for less than the cost of a cup of coffee a day.

We're not for you if:

You're just going to watch the lessons and take no action. Our courses are all about getting your hands dirty with exercises and putting what you're learning into action by building fun and impressive real-world projects.
You're not ready to invest in yourself or just looking for the cheapest way to learn. If that's you, no problem, use our free Learn to Code + AI & Get Hired guide.
You don't think fundamentals matter anymore because AI can do everything for you. Understanding the fundamentals and how things really work will always be important.
You think AI is going to replace you and think there's nothing you can do about it. Well... if you keep wasting time not learning AI tools & skills, you're probably right. Or you embrace them, and 2x your productivity (and probably income too!).

Meet your instructor

Your instructor (Patrik) isn't just an expert with years of real-world professional experience. He has been in your shoes. He makes learning fun. He makes complex topics feel simple. He will motivate you. He will push you. And he will go above and beyond to help you succeed.

Patrik Szepesi

Hi, I'm Patrik Szepesi!

Patrik is a Senior Machine Learning Engineer with years of experience and an enthusiasm for cutting-edge technologies. His focus is to teach you practical, real-world skills by building real projects that solidify your skills.

SEE MY BIO & COURSES

Patrik Szepesi

Senior Machine Learning Engineer

Frequently Asked Questions

Are there any prerequisites for this course?

  • Basic (high-school level) knowledge of Linear Algebra is strongly recommended (basically required in order to really understand everything, but you will still learn lots of high-level information even if you don't follow the math, which is why we're only saying "strongly recommended").

Do you provide a certificate of completion?

We definitely do and they are quite nice. You will also be able to add Zero To Mastery Academy to the education section of your LinkedIn profile as well.

Are there subtitles?

Yes! We have high quality subtitles in 6 different languages: English, Spanish, French, German, Arabic, and Hindi.

You can even adjust the text size, color, background and more so that the subtitles are perfect just for you!

Still have more questions about the Academy?

Still have more questions specific to the Academy membership? No problem, we answer some more here.

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