---

license: apache-2.0

language:

• en

library_name: gguf

tags:

• gguf
• gemma4
• mxfp4
• fp4
• vision
• multimodal
• uncensored
• heretic
• abliterated

base_model: llmfan46/gemma-4-12B-it-uncensored-heretic

pipeline_tag: image-text-to-text

inference: false

quantized_by: FreedomAISVR

---

Gemma-4-12B-it-Uncensored-Heretic-MXFP4-GGUF

MXFP4 GGUF quantization of llmfan46/gemma-4-12B-it-uncensored-heretic - an uncensored/heretic (abliterated) finetune of Google's Gemma 4 12B with vision support.

About MXFP4

MXFP4 (Microscaling FP4) is an open standard (OCP) 4-bit floating point format (E2M1) supported by NVIDIA, AMD, Microsoft, and Meta.

• Works on any GPU with MXFP4 support
• Open standard - not vendor locked
• Block-scaled format with shared scale factors

When to use MXFP4 vs other formats:

• MXFP4 - Open standard, broad hardware support
• NVFP4 - NVIDIA Blackwell native, best performance on RTX 50-series
• Q4_K_M - Best for pre-Blackwell GPUs and CPU inference

Files

| File | Type | Size | Description |

|------|------|------|-------------|

| gemma4-12b-heretic-mxfp4.gguf | MXFP4 | ~6.3 GB | Text model (4.45 BPW) |

| mmproj-gemma-4-12b-heretic-f16.gguf | F16 | ~116 MB | Vision encoder (mmproj) |

Quantization Details

| Property | Value |

|----------|-------|

| Format | MXFP4 (E2M1) |

| Bits Per Weight | 4.45 BPW |

| Source Model | llmfan46/gemma-4-12B-it-uncensored-heretic |

| Architecture | Gemma4UnifiedForConditionalGeneration |

| Layers | 48 |

| Hidden Size | 3840 |

| Context Length | 262144 |

| Vision | Yes (Gemma4V projector) |

| Thinking | Enabled by default (opt-out via enable_thinking=false) |

Model Description

This is an abliterated (uncensored/heretic) finetune of Google's Gemma 4 12B, a multimodal model with both text and vision capabilities. The original model was finetuned to remove safety alignment restrictions while maintaining the model's core capabilities.

Gemma 4 features a hybrid attention architecture with alternating sliding window and full attention layers, native vision encoding, and tool calling support.

Usage

llama.cpp CLI

# Text only
./llama-cli -m gemma4-12b-heretic-mxfp4.gguf -p "Hello" -n 100

# With vision (requires mmproj)
./llama-server -m gemma4-12b-heretic-mxfp4.gguf \
  --mmproj mmproj-gemma-4-12b-heretic-f16.gguf \
  --host 0.0.0.0 --port 8080 -ngl 99

huggingface-hub

from huggingface_hub import hf_hub_download

model_path = hf_hub_download(
    repo_id="FreedomAISVR/Gemma-4-12B-it-Uncensored-Heretic-MXFP4-GGUF",
    filename="gemma4-12b-heretic-mxfp4.gguf"
)
mmproj_path = hf_hub_download(
    repo_id="FreedomAISVR/Gemma-4-12B-it-Uncensored-Heretic-MXFP4-GGUF",
    filename="mmproj-gemma-4-12b-heretic-f16.gguf"
)

Quantization Pipeline

1. Download source: llmfan46/gemma-4-12B-it-uncensored-heretic
2. Convert to F16 GGUF: convert_hf_to_gguf.py --outtype f16
3. Extract mmproj: convert_hf_to_gguf.py --mmproj --outtype f16
4. Quantize text: llama-quantize input-f16.gguf output-mxfp4.gguf MXFP4

Hardware Requirements

| Component | Requirement |

|-----------|-------------|

| GPU | Any with MXFP4 support, or CPU fallback |

| VRAM | ~7 GB minimum |

| RAM | ~16 GB recommended |

| Storage | ~7 GB |

License

Apache 2.0 (inherited from base model)