Understand the Gemma 4 model family
Summary
The Gemma 4 family is a set of multimodal, open-source large language models available in five sizes across four architectures. The models range from efficient, dense, on-device options (E2B, E4B) utilizing Per-Layer Embeddings (PLE), to advanced architectures like the encoder-free 12B model, the Mixture-of-Experts (MoE) 26B model, and the highly capable 31B dense model. Each size is optimized for specific use cases, including dedicated vision and audio processing.
Key takeaways
-
E2B and E4B Models
These smaller, dense models are optimized for on-device usage and utilize Per-Layer Embeddings (PLE), which are lookup tables for processing queries. They process audio and images using dedicated encoders.
-
12B Model Architecture
This model is suitable for high-end laptops and employs an encoder-free method, removing dedicated encoders (e.g., audio encoder) and directly projecting audio to the LLM.
-
26B Model (MoE)
This Mixture-of-Experts (MoE) model uses 26 billion parameters but only activates four billion at any given time ('A' for active). It features a larger vision encoder, making it ideal for difficult vision tasks.
-
31B Model
This is the most capable dense model in the Gemma 4 family. It utilizes a larger vision encoder and is presented as the top-tier model.
Technical details
-
Model Architecture & Efficiency
0s
The Gemma 4 family includes five sizes across four architectures. Smaller models (E2B, E4B) are dense and use Per-Layer Embeddings (PLE). The 12B model uses an encoder-free method, projecting modalities directly to the LLM.
-
Mixture-of-Experts (MoE)
0s
The 26B model is an MoE architecture, meaning it activates only a subset of its parameters (4B) despite having 26B total parameters.
Mentioned resources
- Gemma 4 Resources
Channel & topics
Watch on YouTube · Back to latest
This independent, AI-assisted summary is provided for commentary and informational purposes. It may contain errors or omit important context. Please watch the original video for the creator's complete presentation. Video, thumbnail, and related copyrights belong to their respective owners.