Gemma — Google's Open-Weights Flank: Gemma 4 Moves to Apache 2.0, From Mobile to Workstation Full-Size Open Weights
Gemma is Google's open-weights family paired with the closed-source Gemini flagship; Gemma 4 (E2B / E4B / 26B-MoE / 31B) released in April 2026 switched its license from Google Gemma Terms of Use to Apache 2.0 — the single most important change in this article.