Module 16: TinyGPT - Language Models#

⭐⭐⭐⭐⭐ | ⏱️ 4-6 hours

The Culmination: From 1980s MLPs β†’ 1989 CNNs β†’ 2017 Transformers Using ONE Framework

Learning Objectives#

By the end of this module, you will:

  1. Complete the ML evolution story by building GPT-style transformers with components you created for computer vision

  2. Prove framework universality using 95% component reuse from MLPs (52.7%) and CNNs (LeNet-5: 47.5%)

  3. Understand the 2017 transformer breakthrough that unified vision and language processing

  4. Implement autoregressive language generation using the same Dense layers that powered your CNNs

  5. Experience framework generalization - how one set of mathematical primitives enables any AI task

  6. Master the complete ML timeline from 1980s foundations to modern language models

What Makes This Revolutionary#

This module proves that modern AI is built on universal foundations:

  • 95% component reuse: Your MLP tensors, CNN layers, and training systems work unchanged for language

  • Historical continuity: The same math that achieved 52.7% on CIFAR-10 now powers GPT-style generation

  • Framework universality: Vision and language are just different arrangements of identical operations

  • Career significance: You understand how AI systems generalize across any domain

Components Implemented#

Core Language Processing#

  • CharTokenizer: Character-level tokenization with vocabulary management

  • PositionalEncoding: Sinusoidal position embeddings for sequence order

Attention Mechanisms#

  • MultiHeadAttention: Parallel attention heads for capturing different relationships

  • SelfAttention: Simplified attention for easier understanding

  • CausalMasking: Preventing attention to future tokens in autoregressive models

Transformer Architecture#

  • LayerNorm: Normalization for stable transformer training

  • TransformerBlock: Complete transformer layer with attention + feedforward

  • TinyGPT: Full GPT-style model with embedding, positional encoding, and generation

Training Infrastructure#

  • LanguageModelLoss: Cross-entropy loss with proper target shifting

  • LanguageModelTrainer: Training loops optimized for text sequences

  • TextGeneration: Autoregressive sampling for coherent text generation

Key Insights: The Universal ML Framework#

  1. Historical Vindication: The 1980s mathematical foundations you built for MLPs now power 2017 transformers

  2. Framework Universality: Vision (CNNs) and language (GPTs) use identical mathematical primitives

  3. Architecture Evolution: MLPs β†’ CNNs β†’ Transformers are just different arrangements of the same operations

  4. Component Reuse: Your 52.7% CIFAR-10 training systems work unchanged for language generation

The Complete ML Evolution Story#

This module completes your journey through ML history:

🧠 1980s MLP Era: You built the mathematical foundation

  • Tensors, Dense layers, backpropagation β†’ 52.7% CIFAR-10

πŸ“‘ 1989-1998 CNN Revolution: You added spatial intelligence

  • Convolutions, pooling β†’ LeNet-1: 39.4%, LeNet-5: 47.5%

πŸ”₯ 2017 Transformer Era: You unified everything with attention

  • Multi-head attention + your Dense layers β†’ Language generation

🎯 The Proof: Same components, universal applications. You built a framework that spans 40 years of AI breakthroughs.

Prerequisites#

  • Modules 1-11 (especially Tensor, Dense, Attention, Training)

  • Understanding of sequence modeling concepts

  • Familiarity with autoregressive generation

Time Estimate#

4-6 hours for complete understanding and implementation


β€œFrom 1980s MLPs to 2017 transformers - the same mathematical foundations power every breakthrough. You built them all.” - The TinyTorch Achievement

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https://mybinder.org/v2/gh/mlsysbook/TinyTorch/main?filepath=modules/source/16_tinygpt/tinygpt_dev.ipynb
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https://colab.research.google.com/github/mlsysbook/TinyTorch/blob/main/modules/source/16_tinygpt/tinygpt_dev.ipynb
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Browse the Python source code and understand the implementation.

https://github.com/mlsysbook/TinyTorch/blob/main/modules/source/16_tinygpt/tinygpt_dev.py

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