Gemma 4 E4B
Parameters
8B
Context Length
128K
Modality
Multimodal
Auxiliary Parameters
400M
Architecture
Dense
License
Apache 2.0
Release Date
2 Apr 2026
Knowledge Cutoff
-
API Pricing (per 1M)
Input: $0.02 · Output: $0.10
System Requirements
VRAM requirements for different quantization methods and context sizes
1,024 tokens
Consumer
1x RTX 4090
24GB VRAM
Datacenter
1x NVIDIA A100
80GB VRAM
Apple Silicon
1x Apple M3 Max
128GB VRAM
128,000 tokens
Consumer
2x RTX 4090
24GB VRAM
Datacenter
1x NVIDIA A100
80GB VRAM
Apple Silicon
1x Apple M3 Max
128GB VRAM
Architecture Diagram
Evaluation Benchmarks
Rank
#159
| Benchmark | Score | Rank |
|---|---|---|
Professional Knowledge | 0.694 | 43 |
Graduate-Level QA | 0.586 | 97 |
Coding Index | auto 0.09 | 147 |
Intelligence Index | auto 0.09 Standard 0.07 | 269 281 |
Rankings
Overall Rank
#159
Coding Rank
#153
About Gemma 4 E4B
Gemma 4 E4B is an edge-optimized model with 4.5B effective parameters (8B with Per-Layer Embeddings) for mobile and edge deployments. Supports multimodal input (text, image, audio) with 128K context window. Delivers enhanced performance over E2B while maintaining efficient on-device execution. Features thinking mode and native function calling.
Technical Specifications
Attention
Attention Structure
Grouped-Query Attention
Attention Heads
8
Key-Value Heads
2
Attention Head Dimension
256
Position Embedding
ROPE
RoPE Theta
10,000
Sliding Window Attention
Yes
Sliding Window Size
512
Sliding Window Ratio
83.3%
Normalization
RMS Normalization
Activation Function
GELU
Dimensions
Auxiliary Parameters
400M
Hidden Dimension Size
10,240
Number of Layers
42
FFN Intermediate Size (Dense)
10,240
Tokenizer
Vocabulary Size
262,144
About Gemma 4
Gemma 4 is Google DeepMind's most advanced open model family, built from Gemini 3 research and technology. Featuring both Dense and Mixture-of-Experts (MoE) architectures, these multimodal models handle text, images, and audio (on smaller variants), with context windows up to 256K tokens. Designed for frontier-level performance across reasoning, coding, and agentic workflows, Gemma 4 delivers unprecedented intelligence-per-parameter from mobile devices to enterprise servers. Released under Apache 2.0 license.