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
Hyperparameter Tuning
Hyperparameter Tuning explained clearly for everyday readers.
Language AIIn-Context Learning
In-Context Learning explained clearly for everyday readers.
Language AIInstruction Tuning
Instruction Tuning explained clearly for everyday readers.
Language AIAI Hallucinations
AI Hallucinations explained clearly for everyday readers.
Language AITemperature and Sampling
Temperature and Sampling explained clearly for everyday readers.
Language AIWord Embeddings
Word Embeddings explained clearly for everyday readers.
Language AIAttention Mechanisms
Attention Mechanisms explained clearly for everyday readers.
Language AIContext Windows
Context Windows explained clearly for everyday readers.
Language AIChain-of-Thought Reasoning
Chain-of-Thought Reasoning explained clearly for everyday readers.
Language AIQuantization
Quantization explained clearly for everyday readers.
Language AIQuestion Answering
Question Answering explained clearly for everyday readers.
Language AIText Classification
Text Classification 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.