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Nine ways into AI.
Pick the part of AI you're curious about. Every track is free, written in plain English, and goes from first idea to real practice.
- 134 guidesFundamentalsWhat AI is, how it learns, and why it gets things wrong.What is AI?How AI LearnsNeural NetworksExplore
- 272 guidesLanguage AIChatbots, large language models, and writing better prompts.Explore
- 298 guidesVisual AIImage generators, computer vision, and spotting fakes.Explore
- 188 guidesAudio AIVoice assistants, speech-to-text, and AI music.Explore
- 761 guidesApplicationsEveryday uses of AI at home, school, and work.Explore
- 244 guidesIndustriesHow AI is changing health, finance, law, and more.Explore
- 536 guidesTechnicalModels, training, retrieval, agents, and evaluation.Explore
- 145 guidesCompaniesThe labs and companies building today's AI.Explore
- 422 guidesSocietyEthics, safety, jobs, policy, and your rights.Explore
How it works
From curious to confident in four steps.
Everything you need to understand AI is in one place, and all of it is free.
- 01 · Read
Plain-English guides
Short, sourced explainers with key takeaways up top.
- 02 · Ask
A patient AI tutor
Ask anything and get an explanation at your level.
- 03 · Practice
Quick quizzes
Check what stuck, with instant feedback on every answer.
- 04 · Prove it
An AI certificate
Pass 50 free quizzes at 80% or higher to qualify, then certify from $25.
Learning paths
Five courses, one clear path.
Follow a structured path based on where you are now and what you want to understand next.
- Start hereBeginnerAI FoundationsUnderstand how AI works and evaluate claims without hype.4 modules · capstone
- BeginnerResponsible AI UserUse AI productively with verification, privacy, and human oversight.4 modules · capstone
- IntermediateAI at WorkSelect use cases, run measurable pilots, and govern workplace adoption.4 modules · capstone
- IntermediateAI Policy & SocietyAnalyze rights, equity, governance, and public-interest outcomes.4 modules · capstone
- AdvancedBuilding with AI SystemsDesign language-model, retrieval, and agent systems with evidence and safeguards.4 modules · capstone
AI news · Updated daily
Latest in AI.
Plain-English coverage of the AI developments that matter, checked against source evidence and published under transparent editorial standards.
PolicyOctober 6, 2026McDonald's faces antitrust class action over AI pricing
IndustryOctober 6, 2026Physical AI startups discuss forming industry body to set data‑collection standards in India
ProductOctober 6, 2026PyTorch adds native AsyncTP support for ROCm GPUs
PolicyOctober 6, 2026OpenAI apologizes to Australia over AI agent breach of government sites
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