Gemma 4: Google's Most Powerful Open-Source AI Model (2026)

Built from Gemini 3 research, Gemma 4 delivers frontier-level intelligence with multimodal support, agentic workflows, and 140+ languages. Run it locally on your hardware or deploy to the cloud.

#3 on Arena AI Apache 2.0 License 2.8M+ Downloads 140+ Languages

What is Gemma 4?

Gemma 4 is Google DeepMind's fourth-generation family of open-source large language models (LLMs), released on April 2, 2026. Built on the same cutting-edge research and technology as Gemini 3, Gemma 4 is designed to be the most capable open model you can run on your own hardwareβ€”from smartphones to workstations.

Unlike previous generations, Gemma 4 introduces breakthrough capabilities that go far beyond simple chatbots:

  • Multimodal Intelligence: Process text, images, and audio (on E2B/E4B models) with variable resolution support
  • Agentic Workflows: Native function calling and tool use for autonomous multi-step planning
  • Advanced Reasoning: Configurable "thinking mode" for complex problem-solving
  • Massive Context: Up to 256K tokens context window for processing entire codebases or documents
  • True Open Source: Released under Apache 2.0 license with no restrictive terms
  • Global Reach: Pre-trained on 140+ languages for worldwide deployment

Key Features at a Glance

πŸ“¦

4 Model Sizes

E2B, E4B, 26B, 31B - optimized for different hardware

🎨

Multimodal

Text + Image + Audio input, text output

πŸ“š

Long Context

128K-256K tokens context window

πŸ€–

Agentic

Native function calling and tool use

⚑

Fast

Mixture-of-Experts (MoE) architecture for speed

πŸ”’

Private

Run completely offline on your device

πŸ“–

Open

Apache 2.0 license for commercial use

πŸ†

Proven

#3 on Arena AI open model leaderboard

Gemma 4 vs Gemma 3: What's New?

Feature Gemma 3 Gemma 4
Multimodal Text + Image Text + Image + Audio
Context Window 128K 128K-256K
Function Calling Limited Native support
Thinking Mode No Yes (configurable)
License Gemma Terms Apache 2.0
Languages 100+ 140+
Arena AI Rank #6 #3

Gemma 4 Model Versions & Specifications

Gemma 4 comes in four distinct sizes, each optimized for specific deployment scenarios. Whether you're building on-device mobile apps or running powerful workstation agents, there's a Gemma 4 model for you.

Edge Models (E2B & E4B)

The "E" stands for "effective parameters"β€”these models use Per-Layer Embeddings (PLE) to maximize efficiency on mobile and IoT devices.

Gemma 4 E2B

Edge
  • Total Parameters: 5.1B (2.3B effective)
  • Memory: 4.6GB (8-bit) / 3.2GB (4-bit)
  • Context: 128K tokens
  • Modalities: Text, Image, Audio
  • Best For: Smartphones, Raspberry Pi, browser-based apps
  • Download Size: ~4.2GB

Gemma 4 E4B

Recommended
  • Total Parameters: 8B (4.5B effective)
  • Memory: 7.5GB (8-bit) / 5GB (4-bit)
  • Context: 128K tokens
  • Modalities: Text, Image, Audio
  • Best For: High-end phones, tablets, edge devices
  • Download Size: ~5.9GB

Workstation Models (26B & 31B)

Designed for consumer GPUs and workstations, these models deliver frontier-level intelligence for local development.

Gemma 4 26B A4B

MoE
  • Total Parameters: 25.2B (3.8B active)
  • Memory: 25GB (8-bit) / 15.6GB (4-bit)
  • Context: 256K tokens
  • Modalities: Text, Image
  • Architecture: MoE with 128 experts, 8 active
  • Best For: Fast inference, high throughput
  • Download Size: ~17GB

Gemma 4 31B

Dense
  • Total Parameters: 30.7B
  • Memory: 30.4GB (8-bit) / 17.4GB (4-bit)
  • Context: 256K tokens
  • Modalities: Text, Image
  • Architecture: Dense transformer
  • Best For: Maximum quality, fine-tuning
  • Download Size: ~19GB

Which Version Should You Choose?

β†’ Running on mobile/IoT device?

β”œβ”€ Yes β†’ E2B (basic) or E4B (advanced)
└─ No β†’ Continue

β†’ Need maximum speed with good quality?

β”œβ”€ Yes β†’ 26B A4B (MoE)
└─ No β†’ Continue

β†’ Need best possible quality or fine-tuning?

└─ Yes β†’ 31B (Dense)

Hardware Quick Reference:

  • 4-8GB RAM: E2B
  • 8-16GB RAM: E4B
  • 16-32GB VRAM: 26B A4B (quantized)
  • 32GB+ VRAM: 31B or 26B A4B (full precision)

Performance & Benchmarks

Gemma 4 achieves state-of-the-art performance across text, code, reasoning, and multimodal tasks. Here's how it compares to other leading models.

Arena AI Rankings

As of April 2026, Gemma 4 ranks #3 among all open-source models on the Arena AI text leaderboard, with the 31B model scoring 1452 ELOβ€”outperforming models 20x its size.

Coding & Reasoning Performance

Benchmark Gemma 4 31B Gemma 4 26B Gemma 4 E4B Gemma 4 E2B
MMLU Pro (Knowledge) 85.2% 82.6% 69.4% 60.0%
AIME 2026 (Math) 89.2% 88.3% 42.5% 37.5%
LiveCodeBench v6 (Code) 80.0% 77.1% 52.0% 44.0%
Codeforces ELO (Competitive Coding) 2150 1718 940 633
GPQA Diamond (Science) 84.3% 82.3% 58.6% 43.4%

Multimodal Capabilities

Gemma 4 excels at understanding images, documents, and audio:

Vision Performance

  • MMMU Pro (Multimodal Reasoning): 76.9% (31B)
  • MATH-Vision (Visual Math): 85.6% (31B)
  • OmniDocBench (Document OCR): 0.131 edit distance (31B)

Audio Performance (E2B/E4B only)

  • CoVoST (Speech Translation): 35.54 BLEU (E4B)
  • FLEURS (Speech Recognition): 0.08 WER (E4B)

Long Context Performance

  • MRCR v2 (128K context): 66.4% (31B)

How to Download & Run Gemma 4

Get started with Gemma 4 in minutes using your favorite tools. All models are available for free download under the Apache 2.0 license.

Quick Start with Ollama

The fastest way to run Gemma 4 locally:

# 1. Install Ollama (if not already installed)
curl -fsSL https://ollama.com/install.sh | sh

# 2. Run Gemma 4 with one command
ollama run gemma4

# Other versions:
ollama run gemma4:e2b    # smallest, fastest
ollama run gemma4:e4b    # default, balanced
ollama run gemma4:26b    # MoE, fast inference
ollama run gemma4:31b    # dense, best quality

Desktop App: LM Studio

For a user-friendly GUI experience:

  1. Download LM Studio from lmstudio.ai
  2. Search for "gemma-4" in the model library
  3. Click "Download" on your preferred version
  4. Start chatting with Gemma 4

LM Studio features:

  • βœ“ Beautiful desktop interface (Mac, Windows, Linux)
  • βœ“ GPU acceleration support
  • βœ“ Model comparison tools
  • βœ“ Local API server
  • βœ“ 1.6M+ downloads

Cloud Deployment: Google Cloud & Vertex AI

Deploy Gemma 4 at scale on Google Cloud:

  • Vertex AI Model Garden: One-click deployment
  • Cloud Run: Serverless GPU inference
  • GKE: Kubernetes-based orchestration
  • TPU Support: Optimized for Google's Trillium TPUs

Enterprise features:

  • βœ“ Auto-scaling
  • βœ“ High availability
  • βœ“ Compliance certifications
  • βœ“ 24/7 support

Developer Tools: Hugging Face, vLLM, llama.cpp

Hugging Face Transformers

pip install transformers
from transformers import AutoModelForCausalLM

Download: huggingface.co/collections/google/gemma-4

vLLM (High-throughput serving)

pip install vllm
vllm serve google/gemma-4-31b-it

llama.cpp (C++ inference)

  • Optimized for CPU inference
  • GGUF format support
  • Cross-platform (Mac, Linux, Windows)

LiteRT-LM (Mobile & Edge)

  • Optimized for Android, iOS, Raspberry Pi
  • 2-bit and 4-bit quantization
  • <1.5GB memory footprint

Use Cases & Applications

πŸ€– Agentic Workflows & Autonomous AI

Gemma 4's native function calling enables true autonomous agents:

  • Multi-step Planning: Break down complex tasks into actionable steps
  • Tool Use: Call external APIs, databases, and services
  • Self-correction: Verify outputs and retry failed operations
  • Workflow Automation: Chain multiple tools together

Example: Google AI Edge Gallery's "Agent Skills" demonstrates on-device agents that can query Wikipedia, generate visualizations, synthesize music, and build complete apps through conversation.

πŸ“± On-Device AI for Mobile & IoT

Run powerful AI completely offline on edge devices:

  • Personal assistants that respect privacy
  • Real-time translation without internet
  • Smart camera apps with visual understanding
  • Voice-controlled IoT devices

Supported Platforms:

  • βœ“ Android (via AICore Developer Preview)
  • βœ“ iOS (via LiteRT-LM)
  • βœ“ Raspberry Pi 5 (133 prefill, 7.6 decode tokens/s on CPU)
  • βœ“ Qualcomm Dragonwing IQ8 (3,700 prefill, 31 decode tokens/s on NPU)

πŸ’» Code Generation & Assistance

Gemma 4 achieves 80% on LiveCodeBench v6 and 2150 Codeforces ELO:

  • Code completion and generation
  • Bug detection and fixing
  • Code explanation and documentation
  • Refactoring suggestions
  • Multi-language support (Python, JavaScript, Java, C++, Go, Rust, etc.)

🎨 Multimodal Understanding

Process text, images, and audio in a single model:

Vision Capabilities:

  • Document OCR and parsing
  • Chart and graph understanding
  • UI/UX screenshot analysis
  • Handwriting recognition
  • Object detection and description

Audio Capabilities (E2B/E4B):

  • Automatic speech recognition (ASR)
  • Speech-to-translated-text
  • Multi-language support

Frequently Asked Questions

Is Gemma 4 really free to use commercially?

Yes! Gemma 4 is released under the Apache 2.0 license, which allows free commercial use, modification, and distribution. Unlike previous Gemma versions, there are no restrictive terms or usage limitations.

Can I run Gemma 4 on my laptop?

Yes, if you have at least 8GB of RAM. The E2B model (quantized to 4-bit) requires only 3.2GB of memory and can run on most modern laptops. For better performance, the E4B model needs 5-8GB of RAM.

How does Gemma 4 compare to ChatGPT?

Gemma 4 is an open-source model you can run locally, while ChatGPT is a proprietary cloud service. Gemma 4 offers privacy, offline capability, and no usage costs, but ChatGPT (GPT-4) is generally more capable for complex tasks. Gemma 4 31B performs comparably to GPT-3.5 in many benchmarks.

Which Gemma 4 version should I download?

For mobile/edge devices: E2B or E4B
For laptops with 16GB RAM: E4B (quantized)
For desktops with RTX 3060-4070: 26B A4B (quantized)
For high-end GPUs (RTX 4090, A100): 31B

Does Gemma 4 support my language?

Yes, likely! Gemma 4 is pre-trained on 140+ languages including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Hindi, and many more. It has native multilingual support without requiring translation.

Can Gemma 4 see images and hear audio?

Yes! All Gemma 4 models support text and image input. The E2B and E4B models also support audio input for speech recognition and translation. The larger 26B and 31B models support text and images but not audio.

How long does it take to download Gemma 4?

Download sizes:
β€’ E2B: ~4.2GB (5-15 minutes on fast internet)
β€’ E4B: ~5.9GB (7-20 minutes)
β€’ 26B A4B: ~17GB (20-60 minutes)
β€’ 31B: ~19GB (25-70 minutes)

Tools like Ollama and LM Studio handle downloads automatically.

Can I fine-tune Gemma 4 on my own data?

Yes! Gemma 4 supports fine-tuning using popular frameworks: Hugging Face Transformers with QLoRA, Keras with LoRA, Unsloth (fastest), and Google's Gemma library. Fine-tuning requires more VRAM than inferenceβ€”typically 2-3x the base model size.

Is Gemma 4 better than Gemma 3?

Yes, significantly. Gemma 4 improvements over Gemma 3:
β€’ +20-30% performance across benchmarks
β€’ Native multimodal support (audio on small models)
β€’ 2x longer context (256K vs 128K)
β€’ Native function calling for agents
β€’ Apache 2.0 license (more permissive)
β€’ Configurable thinking mode
β€’ Better multilingual support (140+ vs 100+ languages)

Can I use Gemma 4 offline?

Absolutely! That's one of Gemma 4's biggest advantages. Once downloaded, you can run it completely offline with no internet connection. This makes it perfect for privacy-sensitive applications, air-gapped environments, remote locations without connectivity, and reducing API costs to zero.

What's the difference between Dense and MoE models?

Dense (31B): Uses all 30.7B parameters for every token
β€’ Pros: Highest quality, best for fine-tuning
β€’ Cons: Slower, more memory

MoE (26B A4B): Uses only 3.8B active parameters per token
β€’ Pros: Much faster (almost as fast as 4B model), lower latency
β€’ Cons: Still needs 26B memory loaded, slightly lower quality

Choose MoE for speed, Dense for maximum quality.

Can Gemma 4 call functions and use tools?

Yes! Gemma 4 has native function calling support. You can define tools/functions in JSON schema format, and the model will: (1) Decide when to call a function, (2) Generate proper function arguments, (3) Process function results, (4) Continue the conversation. This enables agentic workflows like web search, database queries, API calls, etc.

Official Resources & Community