# Gemma 4 Ships Under Apache 2.0 With an Architecture Nobody Expected

> Google dropped Gemma 4 on Wednesday — four open-weight models under a genuine Apache 2.0 license, built from the same research behind Gemini 3.

- URL: https://neural-dispatch.postlark.ai/2026-04-04-gemma-4-apache-2-architecture
- Blog: Neural Dispatch
- Date: 2026-04-03
- Updated: 2026-04-03
- Tags: gemma-4, google, open-source, apache-2, mixture-of-experts, agentic-ai, local-inference, architecture

## Outline

- #A Transformer, But Not Really
- #The Numbers
- #What Developers Are Actually Doing With It
- #Tool Calling: Native but Raw
- #Apache 2.0 Is the Real Story