01
AI Foundations
Understand what AI is, how systems learn, where they fail, and how to judge claims without hype.
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155 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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Five outcome-based courses
Each course includes explicit outcomes, mapped competencies, practice activities, and an applied capstone.
02
Responsible AI User
Use AI productively while protecting privacy, checking outputs, and preserving human accountability.
03
AI at Work
Evaluate workplace use cases, run safe pilots, measure value, and communicate changes responsibly.
04
AI Policy & Society
Analyze AI systems through rights, equity, governance, safety, and public-interest outcomes.
05
Building with AI Systems
Understand language models, retrieval, agents, evaluation, cost, and deployment safeguards through practical system design.
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FundamentalsCore concepts: how AI works at a high level.84 guides Language AILLMs, NLP, ChatGPT, prompting, and text understanding.155 guides Visual AIImage generation, computer vision, video, and design.133 guides Audio AIVoice, music, podcasting, and audio-first AI.117 guides CompaniesProfiles of OpenAI, Anthropic, Google, Meta, and more.121 guides ApplicationsHow AI shows up in coding, search, agents, and daily life.111 guides IndustriesAI in healthcare, finance, education, energy, and more.91 guides TechnicalChips, fine-tuning, RAG, vectors, and AI infrastructure.177 guides SocietyBias, privacy, copyright, safety, and the AI future.30 guides
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Language AI
ChatGPT & LLMs
A large language model (LLM) is a model trained to work with patterns in language, often by predicting tokens from context.
Language AINLP Basics
Natural language processing, or NLP, is the study and engineering of systems that work with human language.
Language AITransformers
A transformer is a neural-network architecture that uses attention to combine information across a sequence.
Language AIPrompt Engineering
Prompt engineering is the practice of designing and testing instructions and context for an AI model.
Language AIAI Writing Tools
AI writing tools generate or revise text from instructions and context.
Language AIAI Translation
AI translation converts meaning between languages using a learned model.
Language AIGPT History
GPT stands for generative pretrained transformer. The early GPT research sequence explored language-model pretraining, broader task transfer, and learning…
Language AIText to Speech
Text-to-speech, or TTS, turns written text into spoken audio.
Language AISpeech to Text
Speech-to-text systems convert spoken audio into a written transcript.
Language AISentiment Analysis
Sentiment analysis estimates the attitude expressed in text, often using labels such as positive, negative, or neutral.
Language AIMachine Translation
Machine translation is automated conversion from a source language to a target language.
Language AINamed Entity Recognition
Named entity recognition, or NER, identifies spans of text that refer to categories such as people, organizations, and places.
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