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Browse filesdetailed description on how to convert hf models into gguf format
README.md
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license: apache-2.0
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---
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license: apache-2.0
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library_name: transformers
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---
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# GGUF Models: Conversion and Upload to Hugging Face
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This guide explains what GGUF models are, how to convert models to GGUF format, and how to upload them to the Hugging Face Hub.
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## What is GGUF?
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GGUF (GGML Unified Format) is a file format for storing large language models, particularly optimized for efficient inference on consumer hardware. Key features of GGUF models include:
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- Successor to the GGML format
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- Designed for efficient quantization and inference
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- Supports a wide range of model architectures
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- Commonly used with libraries like llama.cpp for running LLMs on consumer hardware
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- Allows for reduced model size while maintaining good performance
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## Why and How to Convert to GGUF Format
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Converting models to GGUF format offers several advantages:
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1. **Reduced file size**: GGUF models can be quantized to lower precision (e.g., int4, int8), significantly reducing model size.
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2. **Faster inference**: The format is optimized for quick loading and efficient inference on CPUs and consumer GPUs.
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3. **Cross-platform compatibility**: GGUF models can be used with libraries like llama.cpp, enabling deployment on various platforms.
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To convert a model to GGUF format, we'll use the `convert-hf-to-gguf.py` script from the llama.cpp repository.
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### Steps to Convert a Model to GGUF
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1. **Clone the llama.cpp repository**:
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```bash
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git clone https://github.com/ggerganov/llama.cpp.git
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```
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2. **Install required Python libraries**:
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```bash
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pip install -r llama.cpp/requirements.txt
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```
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3. **Verify the script and understand options**:
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```bash
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python llama.cpp/convert-hf-to-gguf-update.py -h
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```
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4. **Convert the HuggingFace model to GGUF**:
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```bash
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python llama.cpp/convert-hf-to-gguf-update.py ./models/8B/Meta-Llama-3-8B-Instruct --outfile Llama3-8B-instruct-Q8.0.gguf --outtype q8_0
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```
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This command converts the model to 8-bit quantization (q8_0). You can choose different quantization levels like int4, int8, or keep it in f16 or f32 format.
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## Uploading GGUF Models to Hugging Face
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Once you have your GGUF model, you can upload it to Hugging Face for easy sharing and versioning.
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### Prerequisites
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- Python 3.6+
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- `huggingface_hub` library installed (`pip install huggingface_hub`)
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- A Hugging Face account and API token
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### Upload Script
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Save the following script as `upload_gguf_model.py`:
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```python
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from huggingface_hub import HfApi
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def push_to_hub(hf_token, local_path, model_id):
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api = HfApi(token=hf_token)
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api.create_repo(model_id, exist_ok=True, repo_type="model")
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api.upload_file(
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path_or_fileobj=local_path,
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path_in_repo="Meta-Llama-3-8B-Instruct.bf16.gguf",
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repo_id=model_id
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)
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print(f"Model successfully pushed to {model_id}")
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# Example usage
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hf_token = "your_huggingface_token_here"
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local_path = "/path/to/your/local/model/directory"
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model_id = "your-username/your-model-name"
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push_to_hub(hf_token, local_path, model_id)
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```
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### Usage
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1. Replace the placeholder values in the script:
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- `your_huggingface_token_here`: Your Hugging Face API token
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- `/path/to/your/local/model/directory`: The local path to your GGUF model files
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- `your-username/your-model-name`: Your desired model ID on Hugging Face
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2. Run the script:
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```bash
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python upload_gguf_model.py
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```
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## Best Practices
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- Include a `README.md` file with your model, detailing its architecture, quantization, and usage instructions.
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- Add a `config.json` file with model configuration details.
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- Include any necessary tokenizer files.
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## References
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1. [llama.cpp GitHub Repository](https://github.com/ggerganov/llama.cpp)
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2. [GGUF Format Discussion](https://github.com/ggerganov/llama.cpp/discussions/2948)
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3. [Hugging Face Documentation](https://huggingface.co/docs)
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For more detailed information and updates, please refer to the official documentation of llama.cpp and Hugging Face.
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