Google Gemma 4 Drops: The Apache 2.0 Open Source AI Revolution That Changes Everything in 2026
When Google released Gemma 4 on April 15, 2026, something remarkable happened in the open source AI landscape. A model with 31 billion parameters that anyone can run on a single GPU — with zero commercial restrictions — climbed to #3 on the LM Arena open source leaderboard, sitting just behind models that cost 10x more to deploy. This isn’t just another model release. Gemma 4 represents a fundamental shift in who can access powerful AI. Under the Apache 2.0 license, enterprises can embed this model in commercial products, modify it freely, and deploy it without paying a single dollar