How AI Works Under the Hood — LLMs Explained with Code

📰 Medium · JavaScript

Learn how Large Language Models (LLMs) work under the hood with code examples, from tokenization to generation

intermediate Published 7 May 2026
Action Steps
  1. Explore tokenization using JavaScript libraries like Tokenizer.js to split text into subwords
  2. Implement embeddings with libraries like TensorFlow.js to convert tokens into numerical representations
  3. Apply self-attention mechanisms using popular deep learning frameworks like PyTorch or TensorFlow
  4. Build a simple language generator using LLM principles and JavaScript
  5. Test and fine-tune your LLM model using datasets and evaluation metrics
Who Needs to Know This

Software engineers and AI researchers can benefit from understanding LLMs to build and improve AI-powered applications

Key Insight

💡 LLMs rely on tokenization, embeddings, self-attention, and generation to process and understand human language

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🤖 Learn how LLMs work under the hood with code! #AI #LLMs #JavaScript

Key Takeaways

Learn how Large Language Models (LLMs) work under the hood with code examples, from tokenization to generation

Full Article

A walkthrough of how AI works at the Large Language Model level. From tokenization and embeddings to self-attention and generation with… Continue reading on Medium »
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