AI Research Atlas

Gemma 4 (E2B, E4B, 26B MoE, 31B)

Google DeepMind · 2 April 2026

Gemma 4 ships under Apache 2.0 in four sizes; the 31B dense ranked #3 among open models on Arena AI text, the 26B MoE #6.

Built from Gemini 3 research for reasoning and agent workflows, with 128K context on edge models and up to 256K on larger ones, 140+ languages, and native audio input on E2B and E4B. Apache 2.0 replaces the custom Gemma terms of use.

Date
Thursday, 2 April 2026
Lab
Google DeepMind
Kind
open-weights
Access
open weights

Figures

MeasureValueMeasured by
Arena AI text leaderboard (open models)#3 (31B), #6 (26B)
as of 2026-04-01; Google says it beats models 20x larger
Arena AI

License moves from the custom Gemma terms of use (Gemma 1-3) to Apache 2.0. Gemma 4 12B (2026-06-03) and DiffusionGemma (2026-06-10) followed.

Sources

  1. deepmind.google/blog/gemma-4-byte-for-byte-the-most-capable-open-models/
  2. ai.google.dev/gemini-api/docs/changelog
  3. blog.google/innovation-and-ai/technology/ai/google-ai-updates-april-2026/

This record was checked against its sources on 6 October 2026. How we check

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