AI Foundations
Understand what AI is, how systems learn, where they fail, and how to judge claims without hype.
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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.
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Each course includes explicit outcomes, mapped competencies, practice activities, and an applied capstone.
Understand what AI is, how systems learn, where they fail, and how to judge claims without hype.
Use AI productively while protecting privacy, checking outputs, and preserving human accountability.
Evaluate workplace use cases, run safe pilots, measure value, and communicate changes responsibly.
Analyze AI systems through rights, equity, governance, safety, and public-interest outcomes.
Understand language models, retrieval, agents, evaluation, cost, and deployment safeguards through practical system design.
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Game AI controls non-player characters (NPCs) so they navigate, fight, and react believably.
ApplicationsProcedural content generation (PCG) uses algorithms to create game worlds, levels, items, and quests automatically.
CompaniesCresta is an enterprise AI platform that listens to live contact center conversations and coaches agents in real time.
CompaniesAbridge is a healthcare AI company that turns the conversation between a doctor and patient into a structured clinical note automatically.
CompaniesTempus AI builds one of the largest libraries of clinical and molecular data and applies machine learning to it, so doctors can match patients—especially…
FundamentalsDouble descent is the surprising observation that as a model gets bigger, test error first gets worse near the 'interpolation threshold' but then gets better…
FundamentalsThe Neural Tangent Kernel (NTK) is a mathematical tool showing that infinitely wide neural networks behave like a specific, fixed kernel method during…
FundamentalsThe Lottery Ticket Hypothesis says that inside a large, randomly initialized neural network hides a small subnetwork — a 'winning ticket' — that, trained…
Language AIRelation extraction pulls structured facts out of unstructured text, identifying how two entities connect (like 'works for' or 'located in').
Language AISemantic role labeling (SRL) answers 'who did what to whom, when, where, and why' by tagging the roles each phrase plays around a verb.
Language AIDependency parsing maps the grammatical structure of a sentence as a tree of word-to-word relationships, showing which words depend on which.
Audio AISpleeter is an open-source tool from Deezer that splits a finished song into separate tracks (vocals, drums, bass, and more) using deep learning.
Check what you learned with topic quizzes, then explore our structured courses and current certification requirements. Core guides remain free to read.