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Google releases Gemma 4 open models under Apache 2.0

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Google released Gemma 4, its most capable open models, built from Gemini 3 research and licensed under Apache 2.0, in four sizes: Effective 2B, Effective 4B, a 26B mixture-of-experts model and a 31B dense model. Google said Gemma had been downloaded more than 400 million times.

Why it matters

Developers got permissively licensed Google models small enough to run on phones and single machines.

When
2 Apr 2026
ID
WTA-N-2026-0160
Who
Google DeepMind

Summary by wheresthe.ai, from Google. Checked against the source on 9 Oct 2026.

Source copy: download the page as saved on 18 Oct 2026 (PDF). Also held by the Internet Archive.

Next stop on this Storyline: What happened nextMeta releases Muse Spark, the first model from its Superintelligence Labs

Cite this story

WTA-N-2026-0160: “Google releases Gemma 4 open models under Apache 2.0.” wheresthe.ai, 2 Apr 2026. https://wheresthe.ai/d/google-gemma-4-open-models-2026-04/ (source: Google: Gemma 4).

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