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AI explained in parts.

Most people treat AI as one thing. This page breaks it into parts that matter. Read in order or skip to what you need.

How AI got here

Software that follows rules

How most software you have ever used works.

Software that learns from examples

The pattern-finder behind spam filters and Netflix picks.

How computers learn

The basic shape of how a computer can learn.

How AI gets smart

What happens before you ever open the AI.

What powers ChatGPT

The breakthrough that built modern AI, and why it feels different from older AI.

How AI systems get built

AI on its own

The plain chatbot. Nothing else added.

AI reading your files

AI that can read your own documents before answering.

AI doing things

AI that takes action. Includes plugging into apps and running on its own.

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Where systems are going

What is coming next in AI architecture. Honest, not hyped.

Main web AIs comparison

Honest side-by-side. Pros, cons, and a pick.

Everything you have seen AI do in the last two years is some mix of the things on this page. Once you see the parts, the magic turns into engineering.