Let's build GPT: from scratch, in code, spelled out.

Summary

In this insightful and engaging video titled "Let's build GPT: from scratch, in code, spelled out" by Andrej Karpathy, viewers are taken through the process of creating a Generatively Pretrained Transformer (GPT). Drawing from the groundbreaking paper "Attention is All You Need" as well as OpenAI's renowned GPT-2 and GPT-3, the video delves into the intricacies of these transformative models. Karpathy also discusses the explosive impact of ChatGPT on the world, showcasing GitHub Copilot—a GPT itself—facilitating the coding of another GPT, adding a layer of meta brilliance to the presentation. The video suggests that viewers familiarize themselves with concepts such as the autoregressive language modeling framework, tensors, and PyTorch's neural network basics to fully appreciate the content presented.

Highlights

• Watch as Andrej Karpathy demystifies the process of building a GPT from the ground up. 🏗️
• Learn by seeing how GitHub Copilot, an AI, assists in the creation of another AI model. It's meta and fascinating! 🤯
• The tutorial builds on the 'Attention is All You Need' architecture, fleshing out the theory into actionable code. 🧠
• The video carries viewers through the coding journey, incorporating OpenAI's advancements like GPT-2 and GPT-3. 🚀
• Karpathy's engaging style makes complex concepts in AI and machine learning accessible. 🎓
• Preparation is key: the video suggests brushing up on tensor basics and PyTorch's neural network modules. 🔍

Key Takeaways

• Andrej Karpathy's video is a deep dive into building a GPT, following the architecture laid out in 'Attention is All You Need'. 🛠️
• The tutorial borrows principles from OpenAI’s GPT-2 and GPT-3, integrating complex AI ideas into understandable code segments. 🤖
• GitHub Copilot is highlighted as an AI that helps write AI, offering a meta and practical insight into coding. 📝
• Viewers are advised to first watch Karpathy’s 'makemore' series to better understand the basics required for this tutorial. 📚
• The video emphasizes the monumental influence of ChatGPT, underlining its widespread impact. 🌍
• Karpathy uses engaging and practical examples to bridge advanced AI theory and real-world coding applications. ⚙️

Overview

Ever wondered how GPT models are made? Well, Andrej Karpathy’s latest video, 'Let's build GPT: from scratch, in code, spelled out,' has got you covered. Embarking on a journey to create a Generatively Pretrained Transformer (GPT), the video simplifies concepts from the seminal paper 'Attention is All You Need' and merges them with applications seen in OpenAI's GPT-2 and GPT-3 models. Karpathy links these theoretical foundations with the real-world impact of tools like ChatGPT.

In an entertaining yet educational fashion, Karpathy introduces viewers to the notion of AI helping to create AI with GitHub Copilot. This quasi-virtual assistant helps write code, offering an intriguing glimpse into a recursive AI creation process. The presentation is peppered with wit and wisdom, ensuring that even complex lessons come across as intuitive and occasionally humorous. As the video unfolds, viewers are equipped with both practical skills and theoretical knowledge.

This journey isn’t set for absolute beginners though—Karpathy advises having a solid understanding of autoregressive language models, as well as a grounding in tensors and PyTorch's neural network functionalities. These foundational elements will enhance the learning experience, making the advanced concepts discussed in the video more digestible. Whether you're an AI enthusiast or a practitioner looking to deepen your knowledge, this video is a trove of insights and skills, packaged in an accessible format.

Chapters

• 00:00 - 00:30: Introduction to Building GPT This chapter introduces the video 'Let's build GPT: from scratch, in code, spelled out.' by Andrej Karpathy. The video outlines the construction of a Generatively Pretrained Transformer (GPT) using the foundational paper 'Attention is All You Need' and comparing it with the methodologies of OpenAI's GPT-2 and GPT-3. It also discusses the relationship with ChatGPT and showcases GitHub Copilot assisting in writing a GPT, creating a meta-learning scenario. Viewers are advised to watch earlier videos to understand autoregressive language modeling and PyTorch basics, as these concepts are assumed knowledge in this presentation.
• 00:30 - 01:00: Understanding Generative Pretrained Transformers In this chapter, the video titled "Let's build GPT: from scratch, in code, spelled out." by Andrej Karpathy is introduced. The video aims to build a Generatively Pretrained Transformer (GPT) following the principles introduced in the paper "Attention is All You Need" as well as OpenAI's GPT-2 and GPT-3. It mentions connections to ChatGPT and its widespread impact. The chapter hints at the meta aspect of using GitHub Copilot, a GPT tool, to assist in writing a GPT model. The chapter also recommends watching earlier videos for foundational knowledge in autoregressive language modeling and basic concepts in tensors and PyTorch nn.
• 01:00 - 01:30: The Paper: 'Attention Is All You Need' In this chapter, Andrej Karpathy presents a video that serves as a resource for building a Generatively Pretrained Transformer (GPT) model from scratch. The video leans heavily on the foundational concepts laid out in the seminal paper 'Attention is All You Need', as well as OpenAI's subsequent advancements with models like GPT-2 and GPT-3. Throughout, there are discussions about the practical applications of these models, such as ChatGPT, and a demonstration of how tools like GitHub Copilot, which is itself a GPT, can aid in the development of GPT technology. The chapter also recommends viewers familiarize themselves with prior content, particularly the makemore series that covers autoregressive language modeling, tensor basics, and PyTorch neural networks, as these concepts are integral to understanding the video content.
• 01:30 - 02:00: Exploring GPT-2 and GPT-3 The chapter titled 'Exploring GPT-2 and GPT-3' appears in a video by Andrej Karpathy, where he constructs a Generatively Pretrained Transformer (GPT). This video is constructed around the paper 'Attention is All You Need' and the GPT-2 and GPT-3 models developed by OpenAI. During this segment of the video, he addresses the influence of ChatGPT and observes the functionalities of GitHub Copilot, a derivative of GPT, in assisting the development of a GPT model. The author suggests viewers familiarize themselves with past content concerning autoregressive language models, tensor fundamentals, and PyTorch neural network basics to better understand the material presented in this segment.
• 02:00 - 02:30: Connections to ChatGPT and GitHub Copilot In this chapter, Andrej Karpathy introduces the concept of building a Generatively Pretrained Transformer (GPT) model from scratch. The discussion centers on understanding the underlying technology by following the seminal paper, 'Attention is All You Need,' as well as insights drawn from OpenAI's GPT-2 and GPT-3 models. Karpathy emphasizes the connections to ChatGPT, highlighting its contemporary significance and widespread adoption. Additionally, he showcases GitHub Copilot, a GPT-driven tool, in action to aid in code writing, effectively demonstrating the meta aspect of GPT training. The chapter also serves as a primer for viewers, recommending prior videos on autoregressive language modeling and the basics of tensors and PyTorch nn, to better grasp the advanced concepts discussed.

Let's build GPT: from scratch, in code, spelled out. Transcription

• Segment 1: 00:00 - 02:30 This is a video titled "Let's build GPT: from scratch, in code, spelled out." by Andrej Karpathy. Video description: We build a Generatively Pretrained Transformer (GPT), following the paper "Attention is All You Need" and OpenAI's GPT-2 / GPT-3. We talk about connections to ChatGPT, which has taken the world by storm. We watch GitHub Copilot, itself a GPT, help us write a GPT (meta :D!). I recommend people watch the earlier makemore videos to get comfortable with the autoregressive language modeling framework and basics of tensors and PyTorch nn, which we take for granted in this video. Links: - Google cola