Understanding and Building the Transformer

Tue, 24 Feb 2026 19:51:23 +0900

Introduction

The transformer architecture has become the foundation of modern deep learning, powering everything from language models to vision models. Since I’ll be referencing transformers frequently in future posts, I wanted to create my own comprehensive analysis of the architecture. In this post, I’ll walk through building a transformer-based translation model step by step, following the original paper by Vaswani et al. (2017)¹. We’ll dive into the code, understanding each component as we implement it.

Transformer on Yeongseung's Blog

Understanding and Building the Transformer

Introduction