🌱 Beginner-first · cozy · hands-on

Learning AI
should feel
like play.

Hey, welcome in. No scary math, no 10-hour videos. Just tiny wins, friendly visuals, and patterns you’ll actually remember.

Start my first win ✨Explore tracks

8 minutes is enough today · free · no login

🤖

Psst — every expert was a beginner who didn’t quit. I’ll cheer for you.

Type anything — see how AI sees it:

ChatGPT␣is␣great␣at␣RAG!

💡 11 tokens ≈ billed & limited. That’s why chunking matters. Learn →

🧩Two Pointers
Array pattern

📚RAG
Retrieval pattern

🏗️TinyURL
System design

👋 Where are you starting from?

Tap one — we’ll point you to the friendliest first step.

💡 20 lines → your first LLM call. Then prompts + RAG.Start here →

🔥 Your cozy streak · starts today

Finish 1 chapter to light your streak. 8 minutes is enough.

Part 1 · AI — your cozy room 🤖

Everything about AI, one friendly path

LLMs, prompts, RAG, agents, multimodal, prod — beginner to pro. · 39 short chapters

Welcome

Start: What is AI Engineering? · 3 lessons

AI Foundations (No Math Fear)

Start: What is AI, Really? · 4 lessons

Python for AI

Start: Python Essentials for AI · 3 lessons

How LLMs Work (Visual First)

Start: What are LLMs? · 4 lessons

Your First AI App

Start: Making Your First LLM API Call · 3 lessons

Prompt Engineering

Start: What is Prompt Engineering? · 4 lessons

Continue in AI →

Part 2 · Interview prep — DSA & System Design

Prepare for technical interviews

Pattern-first lessons, runnable code, quizzes, and mock interviews — focused on what interviewers actually ask.

🧩 DSA (Beginner)

Master core patterns — Two Pointers, Sliding Window, Hash Tables, Binary Search, Trees — then rehearse with timed mocks.

Pattern-first lessons with runnable examples
In-browser playground for every technique
Mock interviews with scoring rubric

Start DSA patterns →

🏗️ System Design (Beginner)

Learn to design systems under interview conditions — tradeoffs, estimates, and structured walkthroughs from TinyURL to rate limiters.

Caching, replication, queues, and scaling patterns
Worked designs: TinyURL, rate limiter
Back-of-the-envelope estimation drills

Start system design →

💬

You’ll never learn alone

Quizzes cheer, notes remember, streaks hug you back.

🎧

Listen on walks

Every chapter reads aloud. Learn with chai, not stress.

🎉

Tiny celebrations

Confetti on every done. Dopamine-driven studying.

💛

Made for staying, not straying

Short chapters, playful quizzes, and a streak that hugs you back.

Okay, one cozy chapter →