Five-minute AI explainers
AI, explained in five minutes.
Plain words, one clear diagram, and a source behind every fact. Start from zero, or look up the one thing you need. Every explainer is checked against official sources.
- Free and open source
- No sign-up
Everything on the site
Free for everyone, open source, and no sign-up. Every explainer is checked against official sources.
Find your way
Start here
Two paths: “I use AI” and “I build with AI”.
Learn
Skills by area, from Beginner to Intermediate to Advanced.
Glossary
About 800 AI terms, in plain words, by category.
AI news
Recent official launches, cited to the official announcement.
Every explainer
Short answer
The idea in one line, before anything else.
How it works
One clear diagram of the mechanism.
Example and comparison
A real example and how it compares with related ideas.
Limits and sources
Limitations, numbered sources and a last-checked date.
See it in action
Real screens from whatisai.fyi.
Home Free, open source, no sign-up. Plain words, one clear diagram and a source behind every fact. Open on whatisai.fyi
Start here Two paths, “I use AI” and “I build with AI”, each made of short explainers. Open on whatisai.fyi
Learn Skills by area, each listing the short reads that teach it, from beginner to advanced. Open on whatisai.fyi
Glossary About 800 AI terms, searchable, by category or A to Z. Open on whatisai.fyi
AI news Recent official launches, cited to each official announcement. Open on whatisai.fyi
Explainer What is RAG? A short answer, one diagram, a real example, limits and numbered sources. Open on whatisai.fyi
Built with
Any AI idea, in five minutes
Free, open source, no sign-up.