Transformer from scratch

📰 Dev.to · Eamon

Build a character-level GPT transformer from scratch in PyTorch and learn the fundamentals of transformer architecture and training

advanced Published 25 Mar 2026
Action Steps
  1. Build a character-level GPT transformer model from scratch using PyTorch
  2. Implement the transformer architecture, including the encoder and decoder components
  3. Train the model on a dataset of text using a suitable loss function and optimizer
  4. Test the model's performance on a validation set and evaluate its character-level prediction accuracy
  5. Compare the results with pre-trained transformer models and analyze the differences
Who Needs to Know This

This tutorial is beneficial for machine learning engineers and researchers who want to understand the inner workings of transformer models and implement them from scratch. It can also be useful for software engineers interested in natural language processing and PyTorch

Key Insight

💡 Implementing a transformer model from scratch can provide valuable insights into its architecture and training, and can be used as a foundation for more complex NLP tasks

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🤖 Build a character-level GPT transformer from scratch in PyTorch! 💻

Full Article

Character-level GPT transformer built in PyTorch from scratch — pure architecture and training from...
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