AI Glossary
Look up an AI term. Get a plain-English answer.
Search everyday and technical AI words by name, or by the way you heard them. Open any result for the fuller explanation.
Start here
New to AI? Start with these words.
These are the words you are most likely to meet first. Tap one to open its card.
Learning map
How AI Fits Together
Click any layer or term to see a plain-English explanation.
Simple version: AI is the big category. Machine learning and deep learning are ways to build it. LLMs are one major kind of deep learning model. Apps are the tools people actually use.
Key terms — click any to learn more
Want more detail? Switch to Full explanation at the top of the map.
Browse
Search and filter terms.
How to use the glossary Optional tips and an example — click to open
Search a word such as token, hallucination, or prompt, or use the level buttons to browse. Open a card for the deeper explanation.
Where next
Look up a word, then put it to work.
Stuck on a word? Look it up here, then go back to what you were reading, or try it out yourself.
New · September 2026
Heard it this month.
The words that showed up in the news and in AI videos since summer. Tap one to open it.
Categories
Glossary tiers.
These tiers show how the terms are grouped. Use the filter buttons in Browse to narrow the term cards.
Full glossary list
Every term, A to Z.
Browse without searching. Tap a term to open its card.