AI Expert

Large Language Models explained briefly

8 minutesNew to AIFoundation3Blue1BrownChatGPT & LLMs

3Blue1Brown. The cleanest eight-minute mental model of an LLM on YouTube. Grant Sanderson walks through "next-word prediction," parameters, training, and reinforcement learning from human feedback without ever drifting into hype. Watch it right after the article and the phrase "AI is just autocomplete on steroids" stops being a slogan and starts being a useful shorthand.

AI Expert note

Kept as the primary because it delivers the article's core mental model in eight minutes with no hype; watch it before anything longer on the topic.

What you should get from this

You can explain in plain words how an LLM predicts the next token and why calling it autocomplete on steroids is fair but incomplete.

Watch or know first

None — watchable cold.

Last reviewed: May 18, 2026

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