Family Gemma · 26B parameters

DiffusionGemma 26B-A4B Instruct

DiffusionGemma 26B (Google): Gemma diffusion-based vision-language model, instruct, 128k context, 15 GB VRAM Q4. Apache 2.0. Released June 2026.

🇺🇸 Google·License Apache 2.0·Context 125k tokens·Output 2026-06-10·Fits within the 128 GB of the GIGABYTE AI TOP ATOM← Catalog

01What it can do

Strengths
  • Apache 2.0 (free for commercial use)
  • Diffusion architecture (alternative to AR Transformers)
  • Vision-language multimodal
  • 128k native context
Limitations to know
  • —No official Ollama tag — install via HuggingFace
  • —Diffusion architecture: less mature runtimes/quantization
  • —Public benchmarks still limited
Architecture
DiffusionGemma · diffusion variant of Gemma 4 · 26B parameters · vision-language · 128k context
Training
Google DiffusionGemma: a diffusion (non-autoregressive) variant of the Gemma 4 family, instruction-tuned. An innovative architecture for generating text through successive denoising steps.
Ideal for
Vision-language multimodalDiffusion generationMultilingual

04Install

Install Ollama for your OS. Check the model and its quantization before downloading. Start with 4096 tokens of context, then check placement with ollama ps. A command below is not proof that a test was run on your machine.

$# HuggingFace : google/diffusiongemma-26B-A4B-it
⚠
First download: between 2 and 40 GB depending on the selected quantization. Plan for sufficient disk space; a stable connection is recommended. Subsequent launches are instant.

02Required memory

Approximate GPU VRAM required to run this model, including 4k tokens of context overhead. For a longer context, add ~1 GB per 8k-token increment.

Q4_K_M
The lightest, ~5% loss
15 GB
Q5_K_M
Good quality/size compromise
18 GB
Q8_0
Nearly indistinguishable from FP16
28 GB
FP16
Full precision — server use
52 GB
Fallback CPU · If you don't have a GPU, allow 34 GB of RAM minimum to run this model at reduced speed.

What hardware do you need for DiffusionGemma 26B-A4B Instruct?

To run DiffusionGemma 26B-A4B Instruct locally with Q4 quantization, you need about 15 GB of VRAM. An option to compare: GMKtec EVO-X2 64GB / 1TB (Ryzen AI Max+ 395) — leave some headroom for the system and context; check engine compatibility with the GPU.

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On the go: DiffusionGemma 26B-A4B Instruct also runs on a RTX laptop PC (16 GB of VRAM) →

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03Expected speed

Tokens generated per second in Q4_K_M, 4k context. Beyond 20 t/s, reading is comfortable. Below 10 t/s, that's just for testing.

Entry-level
~9t/s
GTX 1650, RX 6600, MBA M2 8GB
Mid-range
~14t/s
RTX 4060, 4070, MBP M3 Pro
High-end
~22t/s
RTX 4090, M4 Max, Radeon 7900