Inside Gemma 4 E2B: 5B Params Running Like 2.3B

dejanseo · x · 2026-08-15

An interactive explainer breaks down the Google DeepMind Gemma 4 E2B-it model. It stores 5B parameters but computes with an effective 2.3B thanks to per-layer embeddings, fitting in under 1.5 GB of memory. The post covers the architecture, self-attention mechanism, and why per-layer embeddings reduce compute costs, offering interactive demos for each concept.

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