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Gemma 3n E2B IT

Active Parameters

6B

Context Length

33K

Modality

Text

Architecture

Mixture of Experts (MoE)

License

Google Gemma License

Release Date

20 May 2025

Knowledge Cutoff

Jun 2024

System Requirements

VRAM requirements for different quantization methods and context sizes

1,024 tokens

14.23 GB VRAM

Consumer

1x RTX 4090

24GB VRAM

Datacenter

1x NVIDIA A100

80GB VRAM

Apple Silicon

1x Apple M3 Max

128GB VRAM

32,768 tokens

18.33 GB VRAM

Consumer

1x RTX 4090

24GB VRAM

Datacenter

1x NVIDIA A100

80GB VRAM

Apple Silicon

1x Apple M3 Max

128GB VRAM

Architecture Diagram

Input TokensToken EmbeddingPosition: AbsoluteHidden: 2.6k · Context: 33Kx 30 layersRMSNormPre-AttentionMulti-Head Attention+RMSNormPre-FFNSparse MoE FFNActivation+Final RMSNormOutput Logits

Evaluation Benchmarks

Rank

#117

BenchmarkScoreRank

General Knowledge

MMLU

0.601

35

Web Development

WebDev Arena

1319

73

General Text

Text Arena

1318

80

Rankings

Overall Rank

#117

Coding Rank

#82

About Gemma 3n E2B IT

Gemma 3n E2B IT is a member of the Google Gemma 3n model family, engineered for efficient deployment and execution on resource-constrained devices, including mobile phones, laptops, and workstations. This model is designed to facilitate highly capable, real-time artificial intelligence inference directly at the edge. The E2B variant is specifically instruction-tuned for diverse applications.

The architectural foundation of Gemma 3n E2B IT is the Matryoshka Transformer, or MatFormer. A central innovation in this architecture is the implementation of selective parameter activation technology. This enables the model to operate with an effective memory footprint of approximately 2 billion parameters, even though the total number of parameters loaded during standard execution is 6 billion. This flexible parameter management allows for dynamic optimization of performance relative to computational resources. Furthermore, the model incorporates multimodal understanding capabilities, processing not only textual input but also images, video, and audio to generate textual outputs. For visual data, it employs a SigLIP vision encoder, which integrates a "Pan & Scan" algorithm to robustly handle varying image resolutions and aspect ratios. The attention mechanism within the model is structured with an interleaved pattern, alternating between five local layers, each utilizing a constrained sliding window of 1024 tokens, and one global layer. This design optimizes Key-Value (KV) cache management, which is essential for efficient processing of long contexts. Positional encoding is managed through Rotary Position Embeddings (RoPE), and the model leverages Grouped-Query Attention (GQA) along with RMSNorm for normalization.

In terms of operational characteristics, Gemma 3n E2B IT supports a context length of 32,768 tokens. It features comprehensive multilingual capabilities, having been trained on data encompassing over 140 languages, and utilizes a tokenizer optimized for broad language coverage. The model is applicable to a range of generative AI tasks, including question answering, summarization, and reasoning. Its efficient architecture makes it particularly suitable for integration into systems requiring low-resource deployment, such as content analysis tools, automated documentation systems, and interactive multimodal assistants. The model also supports function calling, enabling the construction of natural language interfaces for programmatic control.

Technical Specifications

Attention

Attention Structure

Multi-Head Attention

Attention Heads

-

Key-Value Heads

-

Attention Head Dimension

-

Position Embedding

Absolute Position Embedding

RoPE Theta

-

Sliding Window Attention

-

Sliding Window Size

-

Normalization

RMS Normalization

Activation Function

-

Dimensions

Hidden Dimension Size

2,560

Number of Layers

30

FFN Intermediate Size (Dense)

-

Multi-Token Prediction Heads

-

Tokenizer

Vocabulary Size

-

Mixture of Experts

Total Expert Parameters

2.0B

Number of Experts

-

Active Experts

-

Shared Experts

-

FFN Intermediate Size (per Expert)

-

Dense Layers Before MoE

-

Model Integrity

Total Score

B

67 / 100

About Gemma 3

Gemma 3 is a family of open, lightweight models from Google. It introduces multimodal image and text processing, supports over 140 languages, and features extended context windows up to 128K tokens. Models are available in multiple parameter sizes for diverse applications.


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