AI Foundations
Understand what AI is, how systems learn, where they fail, and how to judge claims without hype.
Free AI library
121 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.
Topic tracks
Jump into the area you care about. Every track has multiple plain-English guides.
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Gemma is Google's family of lightweight, open-weight AI models built from the same research and technology as Gemini.
CompaniesGPT-4 (2023) was OpenAI's breakthrough large multimodal model that could accept images as well as text, and GPT-4o (2024) made it faster, cheaper…
CompaniesCursor is an AI-first code editor built by the startup Anysphere that turns natural-language instructions into working code edits across an entire codebase.
CompaniesReplit AI is a suite of AI coding features built into Replit, a browser-based development platform, letting anyone build and deploy software from a phone…
CompaniesGoogle DeepMind is Alphabet's flagship AI research lab, formed in 2023 by merging DeepMind with Google Brain.
CompaniesDeepSeek is a Chinese AI company known for releasing high-performing open-weight large language models at a fraction of typical training costs.
CompaniesCharacter.AI is a consumer app where users chat with AI personas — from historical figures to original characters — built by founders who pioneered…
CompaniesInflection AI built Pi, an empathetic personal-AI chatbot, and trained its own Inflection family of large language models.
CompaniesAI21 Labs is an Israeli AI company building large language models (the Jurassic and Jamba families) and enterprise tools, plus the consumer writing assistant…
CompaniesTogether AI is a cloud platform built specifically for open-source AI, letting developers run, fine-tune, and train models like Llama and DeepSeek on fast…
CompaniesDatabricks is a data and AI platform that unifies data engineering, analytics, and machine learning on a single 'lakehouse' foundation.
CompaniesScale AI is a company that supplies the high-quality labeled and curated data that powers modern AI models.
Check what you learned with topic quizzes, then explore our structured courses and current certification requirements. Core guides remain free to read.