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language: - en - zh license: gemma tags: - gemma4 - gguf - quantized - 31b - uncensored - conversational base_model: google/gemma-4-31b-it pipeline_tag: text-generation

Gemma-4-31B-MooMoo_4M-CRACK-GGUF

GGUF quantizations of Gemma-4-31B-MooMoo_4M-CRACK for use with llama.cpp, LM Studio, Ollama, and other GGUF-compatible inference engines.

About the Model

  • Base model: google/gemma-4-31b-it
  • Architecture: Gemma 4 Dense Transformer (31B parameters, 60 layers)
  • Features: Hybrid Sliding/Global Attention, Vision + Audio multimodal
  • Modification: CRACK abliteration (refusal removal) + MooMoo v2 mixed-precision quantization

Why This Conversion?

The original model uses MooMoo v2 mixed-precision MLX quantization (attention 8-bit + MLP 4-bit), which is only compatible with vMLX. Standard tools (llama.cpp, LM Studio, oMLX, mlx-lm) cannot load this format due to mixed per-layer bit widths.

This repository provides standard GGUF quantizations that work everywhere.

Conversion Process

Original (MooMoo v2 MLX safetensors, ~18GB)
    ↓ dequantize (attention 8-bit → f16, MLP 4-bit → f16)
Intermediate (float16 safetensors, ~60GB)
    ↓ convert_hf_to_gguf.py + quantize
GGUF (various quantizations)

Note: Since the original was already quantized (avg 5.1 bits), the dequantized f16 intermediate is an approximation. Re-quantizing to GGUF introduces minimal additional quality loss since the attention layers were preserved at 8-bit in the original.

Available Quantizations

File Quant Size Quality Notes
gemma-4-31b-moomoo-crack-Q3_K_M.gguf Q3_K_M ~14 GB Acceptable Minimum viable quality
gemma-4-31b-moomoo-crack-Q4_K_M.gguf Q4_K_M ~18 GB Good Best size/quality balance
gemma-4-31b-moomoo-crack-Q5_K_M.gguf Q5_K_M ~21 GB Better Recommended if RAM allows
gemma-4-31b-moomoo-crack-Q6_K.gguf Q6_K ~25 GB Very Good High quality
gemma-4-31b-moomoo-crack-Q8_0.gguf Q8_0 ~33 GB Near lossless Closest to original

System Requirements

Quantization Minimum RAM Recommended
Q3_K_M 20 GB 24 GB
Q4_K_M 24 GB 32 GB
Q5_K_M 28 GB 36 GB
Q6_K 32 GB 40 GB
Q8_0 40 GB 48 GB

Usage

LM Studio

Download any .gguf file and open it in LM Studio.

llama.cpp

./llama-cli -m gemma-4-31b-moomoo-crack-Q4_K_M.gguf -p "Hello" -n 256

Ollama

echo 'FROM ./gemma-4-31b-moomoo-crack-Q4_K_M.gguf' > Modelfile
ollama create gemma4-crack -f Modelfile
ollama run gemma4-crack

License

Gemma License

Disclaimer

This model has had safety guardrails removed. Use responsibly and in compliance with applicable laws.

Contact Me:

You can see My Blog Or mail to me: guenter.chao@gmail.com

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GGUF
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