AI4AI Courses — Learn AI by Doing
253 hands-on lessons across 44 free courses on the AI models, tools, and skills that matter in 2026 — Claude, ChatGPT, Gemini, prompt engineering, RAG, AI agents, data analysis, and more. Taught at three reading levels so they fit beginners and experts alike.
Every lesson includes a runnable "Try it" prompt you can paste straight into a real model, plus a short quiz to lock in the idea. Pick a track below and start free.
Skills courses
✨ Prompt Engineering Foundations
Covers: What a Prompt Really Is · Roles & System Prompts · Few-Shot: Teaching by Example.
🤖 Agent Builder Path
Covers: Anatomy of an Agent: Model, Tools, Memory, and the Loop · The Agent Loop: Plan, Act, Observe, Repeat · Designing Good Tools for Agents.
📚 RAG: Retrieval-Augmented Generation
Covers: RAG: The Open-Book Exam for AI · Chunking Documents Well: Size, Overlap, and Structure-Aware Splitting · Embeddings & Vector Search: Finding Similar Meaning.
📊 AI for Data Analysis
Covers: From Question to Insight: AI as Your Data Analyst · Clean & Explore Messy Data with AI · Natural Language to SQL: From Business Question to Verified Query.
🎨 AI Image & Video Generation
Covers: How Image Generation Works: Diffusion in Plain Terms · Writing Great Image Prompts · Steering the Image: Aspect Ratio, Seeds, and Reference Images.
💻 AI-Assisted Coding
Covers: The 2026 AI Coding Landscape: Assistants, Completions, and Agents · Prompting for Code That Works · Agentic Coding: AI That Plans, Edits, Tests, and Self-Corrects.
🧪 Evaluating & Testing LLMs
Covers: Why Evals Matter: Measure Before You Improve · Building a Test Set: Real Inputs & What Good Looks Like · Scoring Methods: Exact Match, Rubrics, and LLM-as-Judge.
🚀 Agents in Production
Covers: Designing Reliable Agents: Scope, Tools, and Success Criteria · Orchestration Patterns: Single vs. Multi-Agent · State & Memory at Scale: Persisting, Summarizing, and Recovering.
🔌 MCP Mastery: The Model Context Protocol
Covers: MCP: The Universal Connector for AI Tools · MCP Architecture: Hosts, Clients, and Servers · Using MCP Servers: Connecting Your Assistant to the Real World.
✍️ AI for Writing & Content
Covers: Write With AI, Sound Like You · The AI Drafting Workflow: Outline → Expand → Tighten → Verify · Tone & Audience Control: One Message, Many Voices.
⚙️ AI Workflow Automation
Covers: Spotting Work Worth Automating · Connecting AI to Your Tools · Designing a Reliable Automation.
🔍 AI for Research & Learning
Covers: AI as Your Study Partner · Summarizing Without Losing Nuance · Comparing Sources & Both Sides.
🧮 Vector Databases & Embeddings
Covers: Embeddings, Simply · What a Vector DB Does (and When You Need One) · Indexing: HNSW, IVF & the Trade-off.
💼 AI for Business & Productivity
Covers: Finding Real Use Cases (Not Hype) · Draft, Summarize & Decide Faster · Meetings & Email on Autopilot.
🛡️ AI Safety, Ethics & Responsible Use
Covers: Why Responsible AI Matters · Bias & Fairness · Privacy & Your Data.
🎛️ Fine-Tuning & Custom Models
Covers: Prompting vs RAG vs Fine-Tuning: Pick the Right Tool · When Fine-Tuning Helps — and When It Doesn't · Building a Fine-Tuning Dataset.
🧩 Context Engineering
Covers: Context Engineering vs Prompt Engineering · The Context Budget: Tokens, Truncation, and What to Keep · Memory That Lasts: Context Windows vs. Long-Term Stores.
🔧 Structured Outputs & Function Calling
Covers: Why Structured Output Matters · JSON Mode & Schemas: Locking the Output Shape · Function & Tool Calling: Letting the Model Trigger Real Actions Safely.
🖥️ Running Local & Open-Source LLMs
Covers: Why Run a Model Locally? · Picking an Open Model: Llama, Mistral, Qwen, and Friends · Getting Started with Ollama: Your First Local Model in Minutes.
🛡️ AI Security & Red-Teaming
Covers: The AI Attack Surface: New Tricks, Same Stakes · Prompt Injection: How Untrusted Text Hijacks Your Model · Jailbreaks and Guardrail Bypasses: Finding the Gaps.
🎙️ Voice AI & Conversational Agents
Covers: Voice AI Today: Speech, Synthesis, and Real-Time Conversation · Speech Recognition That Works: Accuracy, Latency, and Noisy Audio · Natural-Sounding TTS: Voices, Emotion, and Streaming Audio.
⚡ LLM Cost & Latency Optimization
Covers: Where Your Money Goes: Tokens, Context, and LLM Economics · Picking the Right Model: Capability vs Cost vs Latency · Prompt Caching: Pay Once for Repeated Context.
Claude courses
🟠 Claude Mastery
Covers: The Claude Family: Opus, Sonnet, and Haiku · XML Tags: Claude's Native Structure · Extended Thinking: Claude's Reasoning Mode.
Tools courses
🟦 Microsoft 365 Copilot Mastery
Covers: What is Microsoft 365 Copilot? · Writing great Copilot prompts · Copilot Chat: your work, answered.
🧑✈️ GitHub Copilot Mastery
Covers: What GitHub Copilot actually is · Completions: writing with ghost text · Copilot Chat: slash commands & inline fixes.
OpenAI courses
🟢 ChatGPT & GPT Mastery
Covers: Picking the Right GPT: Model Families in 2026 · Custom Instructions & Memory: Make ChatGPT Remember You · Structured Outputs & JSON Mode: Machine-Readable Answers from GPT.
Google courses
🔷 Gemini Mastery
Covers: The Gemini Family: Pro, Flash, Nano & the Giant Context Window · Long-Context Superpowers: Feeding Entire Books, Codebases & Videos to Gemini · Native Multimodality: Reasoning Over Images, Audio, and Video Together.
AI4AI 4K · Older Kids (ages 13–18) — School Subjects with AI
Part of AI4AI 4K, our kids zone. AI-assisted study guides for teens: use AI to revise and ace Mathematics, Physics, Chemistry and Biology for IGCSE, IB and more.
➗ ➗ IGCSE Mathematics with AI
Covers: Meet Your AI Maths Tutor: What It's Great At, and Where It Goes Wrong · Infinite Practice: AI-Generated Questions & Worked Solutions for IGCSE Maths · Three Explanations Until It Clicks.
⚛️ ⚛️ IGCSE Physics with AI
Covers: Meet Your AI Study Buddy — and Know Its Limits · Your Personal Physics Question Factory · Three Explanations Until It Clicks.
🧪 🧪 IGCSE Chemistry with AI
Covers: Meet Your AI Study Buddy: What It Gets Right (and Where It Lies) in IGCSE Chemistry · Your 24/7 Chemistry Tutor: Generating Practice Questions & Worked Solutions · Three Explanations Until It Clicks: Getting Unstuck in Chemistry.
🧬 🧬 IGCSE Biology with AI
Covers: Meet Your AI Study Buddy: What It Can (and Can't) Do for IGCSE Biology · Your Unlimited Question Bank: Generating IGCSE Biology Practice · Explain It Three Ways: Cracking Any Tricky Biology Concept.
➗ ➗ IB Mathematics with AI
Covers: Meet Your AI Study Buddy: What It Can (and Can't) Do for IB Maths · Your Infinite Question Bank: AI-Generated IB Math Practice · Explain It Three Ways: Get Unstuck on Any IB Maths Concept.
⚛️ ⚛️ IB Physics with AI
Covers: Your IB Physics AI Tutor: What It Can (and Can't) Do · Your Infinite IB Physics Question Bank · Three Ways to Click: Getting AI to Re-Explain Any IB Physics Concept.
🧪 🧪 IB Chemistry with AI
Covers: Meet Your AI Study Buddy for IB Chemistry · Your Personal IB Chemistry Question Bank · Three Explanations: Getting AI to Re-Explain Any Hard Concept Until It Clicks.
🧬 🧬 IB Biology with AI
Covers: Meet Your AI Biology Tutor — and Know Its Limits · Your Infinite Question Bank: AI-Generated IB Biology Practice · Triple-Explanation: Get Unstuck on Any IB Biology Concept.
AI4AI 4K · Little Learners (ages 5–12)
Part of AI4AI 4K, our kids zone. Gentle, screen-free lessons parents and teachers use to introduce children to AI safely.
🧒 AI for Kids — A Parent & Educator Guide
Covers: What Is AI? 🤖 · How Does AI Learn? 🧠 · Using AI Safely & Kindly 💛.
🎨 Making Things with AI 🎨
Covers: Words That Paint Pictures! · Let's Make Up a Story Together! · Music from a Machine! 🎵.
🦮 AI That Helps People 🦮
Covers: Helpers That See and Hear for Us · Maps That Think Ahead · AI Helps the Helpers!.
🏠 Smart Homes & Gadgets 🏠
Covers: Say Hello to Smart Helpers! · Your Home's Little Helpers · Shh! Keeping Our Private Things Safe.
🤖 Robots & Smart Machines 🤖
Covers: Meet the Helpers: What Is a Robot? · How Robots Feel the World Around Them 🌟 · Are All Robots Smart? 🤖✨.
✅ Be a Smart AI Checker ✅
Covers: Even Helpers Can Get It Wrong! · Double-Check Detectives: Books and Grown-Ups to the Rescue! · Uh-Oh, That Sounds Silly! 🤔.
🔍 AI All Around Us 🔍
Covers: AI Is Everywhere — Let's Find It! · AI That Listens: How Does It Hear Me? · Why Does the App Guess What I Like?.
💙 AI and Feelings 💙
Covers: Does Your Helper Have Feelings? · Kind Hearts Are for People 💙 · Real Friends Know Your Heart.
🌳 AI Helping Animals & Nature 🌳
Covers: How AI Counts Wild Animals! · Listening to the Forest: AI Ears for Animals · AI Helps Plants Grow Strong! 🌱.
How AI4AI courses work
🌱⚡🔬 Three reading levels
Read any lesson as Simple, Standard, or Deep — the same idea explained for a beginner, a professional, or an expert.
⚡ Learn by running it
Each lesson ends with a prompt you actually run against a live model, so the concept sticks.
✅ Check your understanding
A quick quiz on every lesson tells you what landed and what to revisit.
Frequently asked questions
Are AI4AI courses free?
Yes — every course is free to start, and the daily free tier lets you run real models in the playground. Premium unlocks unlimited runs and premium tracks.
Do I need to know how to code?
No. Most courses (prompting, model mastery, AI for work) require no coding. A few — like AI-assisted coding and agents — assume light programming familiarity, and even those explain concepts from scratch.
How long does a course take?
Courses are short and modular — typically 4–8 lessons of 5–9 minutes each, so you can finish one in a sitting or spread it out. There are 253 lessons across 44 courses in total.
How current is the material?
Courses are kept up to date as models change, and new courses are published continuously, so the guidance reflects how AI actually works today.