I Replaced My $500 GPU with a $75 Raspberry Pi: How Gemma 4 Makes Computer Vision 10x Cheaper

This is a submission for the Gemma 4 Challenge: Write About Gemma 4 I Replaced My $500 GPU with a $75 Raspberry Pi: How Gemma 4 Makes Computer Vision 10x Cheaper Native object detection without YOLO, OpenCV, CUDA, or cloud APIs. Just Gemma 4 multimodal AI running 100% offline on a single-board computer. TL;DR — What You'll Learn Metric Traditional CV Gemma 4 Vision Total Cost $500–2000 (GPU + cloud) $75 (Raspberry Pi 5) Monthly Bill $20–100 cloud fees $0 (runs offline) Setup Time 2–4 hours of de