Technology & Science
Google Open-Sources Gemma 4 Under Apache 2.0, Enabling 2–31 B-param LLMs to Run Locally
On 2–3 Apr 2026 Google dumped its proprietary Gemma license and released the four-size Gemma 4 model family (2B, 4B, 26B-MoE, 31B-Dense) under Apache 2.0, letting developers run state-of-the-art multimodal LLMs entirely on devices ranging from smartphones to a single 80 GB H100 GPU.
Focusing Facts
- At launch the 31 B-parameter Dense variant debuted #3 on Arena-AI’s open-model leaderboard, outperforming systems up to 20× larger.
- The shift to an Apache 2.0 license gives unrestricted commercial and on-premise use, replacing Google’s previous custom Gemma license.
- The 26 B Mixture-of-Experts model activates just 3.8 B parameters during inference, allowing high token throughput while fitting on one Nvidia H100 card.
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