How Gemma 4 Changed the Economics of Local AI

This is a submission for the Gemma 4 Challenge: Write About Gemma 4 Stop Defaulting to the Biggest Model: A Developer's Guide to Right-Sizing Gemma 4 The most powerful local AI model isn't the one with the most parameters. It's the one still running when you actually need it. Most developers waste local AI performance before they type a single prompt. The mistake is almost always the same: download the biggest model first, ask questions later. When Google released Gemma 4 in April 2026, the community's attention rushed straight to the 31B flagship. Benchmarks got posted.