Building an LLM from Scratch — How Large Language Models Actually Work

📰 Medium · LLM

Learn how large language models like ChatGPT work under the hood and why understanding their architecture matters for AI applications

intermediate Published 6 Jun 2026
Action Steps
  1. Read research papers on LLM architecture to understand the basics
  2. Build a simple language model using open-source frameworks like TensorFlow or PyTorch
  3. Configure a dataset for training and testing an LLM
  4. Train a model using a dataset and evaluate its performance
  5. Apply transfer learning to fine-tune a pre-trained LLM for a specific task
Who Needs to Know This

AI engineers and data scientists on a team benefit from understanding LLM architecture to improve model performance and develop new AI applications. This knowledge also helps product managers make informed decisions about AI integration

Key Insight

💡 LLMs rely on complex neural network architectures and large datasets to generate human-like text

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🤖 Did you know how ChatGPT works under the hood? Learn about LLM architecture and build your own model!

Key Takeaways

Learn how large language models like ChatGPT work under the hood and why understanding their architecture matters for AI applications

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