Foundations
Start here if you're new to AI. Build a solid mental model in a few hours.
Free AI library
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.
Start here
Each path is a sequence of guides you can read in order. Pick the one that matches what you want to do.
Start here if you're new to AI. Build a solid mental model in a few hours.
Learn how to actually use today's AI tools well — chat, write, create, code.
Understand the real-world impact of AI on jobs, privacy, safety, and society.
Topic tracks
Jump into the area you care about. Every track has multiple plain-English guides.
Full library
155 of 1019 guides shown. Filter by track or search above.
Word2Vec Skip-Gram and CBOW explained clearly for everyday readers.
Language AIGloVe Global Vectors explained clearly for everyday readers.
Language AIFastText Subword Embeddings explained clearly for everyday readers.
Language AIELMo Contextual Embeddings explained clearly for everyday readers.
Language AIMatryoshka Representation Embeddings explained clearly for everyday readers.
Language AIColBERT and Multi-Vector Retrieval explained clearly for everyday readers.
Language AIConstituency Parsing explained clearly for everyday readers.
Language AILemmatization and Stemming explained clearly for everyday readers.
Language AITF-IDF and Bag-of-Words Models explained clearly for everyday readers.
Language AICross-Encoders vs Bi-Encoders explained clearly for everyday readers.
Language AIAbstractive vs Extractive Summarization explained clearly for everyday readers.
Language AIProcess Supervision for Math Reasoning explained clearly for everyday readers.
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.