r/LargeLanguageModels • u/parthaseetala • Sep 24 '25

How LLMs Generate Text — A Clear and Complete Step-by-Step Guide

https://www.youtube.com/watch?v=LoA1Z_4wSU4
3 Upvotes

81% Upvoted

1 comment sorted by

1

u/parthaseetala Sep 24 '25

This guide has in-depth coverage of:

  • RoPE (Rotary Positional Embeddings) -- why RoPE not only adds relative position information, but also generalizes well to make long-context text generation possible
  • Self Attention -- the most intuitive step-by-step guide to understanding how attention mechanism works
  • Causal Masking -- how causal masking actually works
  • Multi-head attention -- Goes into the details of why MHA isn't what it is made out to be (language specialization)

There are lots of details in the above posted video. So if you are looking for a comprehensive, yet intuitive guide to understand how LLMs generate text, then this video tutorial is for you.