01
Foundations
Start here if you're new to AI. Build a solid mental model in a few hours.
Free AI library
Learn AI.Free forever.
1019 plain-English guides, structured learning paths, and an open library — built by an independent 501(c)(3) nonprofit so anyone can understand modern AI.
1019Free guides
9Topic tracks
~4 minPer guide
68h+Total library
Start here
Three learning paths
Each path is a sequence of guides you can read in order. Pick the one that matches what you want to do.
02
Practical Use
Learn how to actually use today's AI tools well — chat, write, create, code.
03
Society & Ethics
Understand the real-world impact of AI on jobs, privacy, safety, and society.
Topic tracks
Browse by track
Jump into the area you care about. Every track has multiple plain-English guides.
Full library
All guides
1019 of 1019 guides shown. Filter by track or search above.
Technical
Test-Time Augmentation
Test-Time Augmentation explained clearly for everyday readers.
TechnicalNegative Sampling and Noise Contrastive Estimation
Negative Sampling and Noise Contrastive Estimation explained clearly for everyday readers.
TechnicalInfoNCE and SimCLR Objectives
InfoNCE and SimCLR Objectives explained clearly for everyday readers.
TechnicalStochastic Weight Averaging
Stochastic Weight Averaging explained clearly for everyday readers.
TechnicalLookahead and Lion Optimizers
Lookahead and Lion Optimizers explained clearly for everyday readers.
TechnicalMixup and CutMix Augmentation
Mixup and CutMix Augmentation explained clearly for everyday readers.
FundamentalsTriplet Loss and Metric Learning
Triplet Loss and Metric Learning explained clearly for everyday readers.
TechnicalOnline and Hard Negative Mining
Online and Hard Negative Mining explained clearly for everyday readers.
FundamentalsLabel Smoothing
Label Smoothing explained clearly for everyday readers.
TechnicalCapsule Networks
Capsule Networks explained clearly for everyday readers.
TechnicalEcho State Networks and Reservoir Computing
Echo State Networks and Reservoir Computing explained clearly for everyday readers.
FundamentalsLong Short-Term Memory Cells
Long Short-Term Memory Cells explained clearly for everyday readers.
Keep AI education free for everyone.
We're a 501(c)(3) nonprofit. No ads, no paywall, no tracking. Just clear AI guides funded by readers who value an independent source.