The Surprisingly Simple Idea Behind Every LLM | LLM Architectures

Modern AI systems like ChatGPT may seem incredibly complex, but underneath them lies a surprisingly simple architectural idea.
Link to Playlist: https://www.youtube.com/playlist?list=PLXbHFipU3DRwVq13MQTTVQAYtsKNLMUXJ

Chapters:
0:00 The One Job
0:21 What IS This Thing?
0:53 Autocomplete on Steroids
2:51 Inside the Machine
5:48 The Great Split
7:27 Three Axes of Scale
9:32 The Staircase
11:38 The Real Landscape
13:42 One Job, Infinite Outputs

In this video, we visually explore the core structure behind large language models (LLMs) and how a few key components combine to create powerful AI systems.

You will learn:
• The core architecture behind modern LLMs
• How transformers process language
• The role of attention and embeddings
• Why scaling changes model behavior
• How these systems generate text and understanding

This video connects together many of the ideas behind modern AI into one unified picture.

This video is part of the Attention Visualized series, where we explain modern AI concepts through visual intuition.

Topics on this channel include:
Transformers, attention mechanisms, embeddings, decoding strategies, large language models (LLMs), and AI agents.