📖 Once Upon a Model

Interactive tales for understanding artificial intelligence

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Vol. I — Foundations
No. 1
Tokenization
How Words Become Numbers
🔤

Tokenization Simulator

See how a language model chops text into tokens. Type any sentence and watch it decompose in real time.

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No. 2
Self-Attention
The Transformer Core
🔗

Self-Attention Simulator

Visualize how every word attends to every other word — the mechanism powering every modern LLM.

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No. 3
Temperature
Creativity vs. Precision
🌡️

Temperature Simulator

Dial up or down the randomness in AI outputs and see how it affects creativity vs. consistency.

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No. 4
Word Embeddings
Meaning as Geometry
🧭

Word Embeddings Simulator

Explore how AI maps words into vector space so that similar meanings end up close together.

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No. 5
Context Window
What the Model Can See
🪟

Context Window Simulator

See what a model "remembers" during a conversation and what happens when context overflows.

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No. 6
Prompt Engineering
Talking to AI Well
✍️

Prompt Engineering Simulator

Learn the techniques that turn vague questions into precise, useful AI responses.

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No. 7
Hallucination
When AI Gets It Wrong
👻

Hallucination Simulator

Understand why AI models confidently state false information — and how to detect and reduce it.

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No. 8
Model vs Chatbot vs Agent
What's the Difference?
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Model vs. Chatbot vs. Agent

Cut through the buzzwords — a clear explainer on what each term actually means and how they relate.

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No. 9
RLHF
Teaching AI Right from Wrong
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RLHF Simulator

See how Reinforcement Learning from Human Feedback shapes AI behaviour through reward signals.

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No. 10
System Prompt
The Hidden Instructions
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System Prompt Simulator

Explore the hidden instructions that shape how an AI behaves before you ever type a word.

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No. 11
AI Terms & Software
A Field Guide
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AI Terms & Software Glossary

A quick-reference for model, agent, bot, LLM, and more — plus common tools like Ollama, ChatGPT, and Claude Code, and when each one actually fits.

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16
Interactive Lessons
3
Subject Volumes
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