Hands On "AI Engineering"

Hands On "AI Engineering"

180-Day AI and Machine Learning Course from Scratch

Day 31: Introduction to NumPy - The Engine Behind AI’s Speed

AI Agents's avatar
AI Agents
Dec 21, 2025
∙ Paid

What We’ll Build Today

  • A lightning-fast image processing pipeline that handles 10,000 images in seconds

  • A real-time data preprocessor that mimics TensorFlow’s input pipeline

  • A performance benchmarking tool that shows why AI companies choose NumPy

Why This Matters: From Python Lists to AI at Scale

Imagine you’re at Netflix, and your AI needs to process recommendations for 200 million users. Using regular Python lists, this would take hours. With NumPy, it takes seconds. This isn’t an exaggeration—it’s the difference between an AI system that works and one that doesn’t.

Here’s the reality: Every major AI framework—TensorFlow, PyTorch, JAX—is built on top of NumPy. When you train a neural network, when you process images for computer vision, when you analyze text for language models, NumPy is running under the hood. It’s not just faster than Python lists; it’s 10-100x faster. And in AI, where you’re processing billions of numbers, that difference means everything.

Think of regular Python like a chef preparing ingredients one at a time. NumPy is like a factory assembly line where thousands of items move simultaneously. This “vectorization” is what makes modern AI possible.

User's avatar

Continue reading this post for free, courtesy of AIE.

Or purchase a paid subscription.
© 2025 AIE · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture