huihui4-8b-a4b-v2-Q4_K_M

Huihui4-8B-A4B-v2-Q4_K_M

This is a 4-bit quantized version of Huihui4-8B-A4B-v2 converted to GGUF format for use with llama.cpp.

Model Details

• Base Model: Huihui4-8B-A4B-v2
• Quantization: Q4_K_M (4-bit, medium quality)
• File Size: 5.42 GB
• Parameters: 8.10 B
• Architecture: Gemma4 with 30 layers, 16 attention heads
• Context Length: 262,144 tokens (training), 4,096 tokens (inference)

Quantization Details

The model was quantized using llama.cpp's q4_k_m quantization method:

• Weight Quantization: 4-bit K-quants
• Activation Quantization: 6-bit (mixed)
• Memory Usage: ~4 GB VRAM on GPU, ~2.6 GB on CPU
• Performance: ~15-20 tokens/second on GTX 1060 6GB

Hardware Requirements

Minimum (CPU Only)

• RAM: 8 GB
• Storage: 6 GB

Recommended (GPU Acceleration)

• GPU: NVIDIA GTX 1060 6GB or better
• VRAM: 6 GB
• RAM: 16 GB
• Storage: 6 GB

Vulkan Backend (Tested)

• GPU: NVIDIA GTX 1060 6GB
• Driver: NVIDIA 535+
• Vulkan: 1.3+

Usage

With llama.cpp (CLI)

# Download the model
huggingface-cli download clxudfast/huihui4-8b-a4b-v2-Q4_K_M huihui4-8b-a4b-v2-Q4_K_M.gguf --local-dir ./models

# Run inference
./llama-cli -m ./models/huihui4-8b-a4b-v2-Q4_K_M.gguf -p "Hello, how are you?" -n 100

With llama-server (HTTP API)

# Start the server
./llama-server -m ./models/huihui4-8b-a4b-v2-Q4_K_M.gguf --port 8080 --host 0.0.0.0

# Query via HTTP
curl -X POST http://localhost:8080/completion   -H "Content-Type: application/json"   -d '{"prompt": "The meaning of life is", "n_predict": 50}'

With Python (llama-cpp-python)

from llama_cpp import Llama

llm = Llama(
    model_path="./models/huihui4-8b-a4b-v2-Q4_K_M.gguf",
    n_ctx=4096,
    n_gpu_layers=31,  # Offload all layers to GPU
    verbose=False
)

output = llm.create_completion(
    "The meaning of life is",
    max_tokens=50,
    temperature=0.7
)
print(output["choices"][0]["text"])

Performance Benchmarks

GTX 1060 6GB (Vulkan Backend)

• Load Time: ~30 seconds
• Inference Speed: 15-20 tokens/second
• VRAM Usage: ~4.5 GB
• GPU Utilization: 70-90%

CPU (Intel i7-12700K)

• Load Time: ~15 seconds
• Inference Speed: 3-5 tokens/second
• RAM Usage: ~6 GB

Conversion Process

1. Downloaded Huihui4-8B-A4B-v2 from Hugging Face
2. Built llama.cpp with Vulkan backend support
3. Converted model to GGUF format using convert_hf_to_gguf.py
4. Quantized to Q4_K_M using quantize tool
5. Tested inference on GTX 1060 6GB GPU

Limitations

• Context limited to 4,096 tokens during inference (vs 262,144 training)
• Quantization may reduce accuracy for complex reasoning tasks
• Vulkan backend may have compatibility issues with some GPU drivers

License

Apache 2.0 (same as base model)

Original Model

• Hugging Face: huihui-ai/Huihui4-8B-A4B-v2
• License: Apache 2.0

Contributing

Issues and pull requests welcome at the original model repository.