transformers gguf mergekit merge arxiv:2306.01708 base_model:bunnycore/HyperLLama3.1-Mix-8B base_model:merge:bunnycore/HyperLLama3.1-Mix-8B base_model:bunnycore/HyperLlama-3.1-8B base_model:merge:bunnycore/HyperLlama-3.1-8B base_model:unsloth/Meta-Llama-3.1-8B base_model:merge:unsloth/Meta-Llama-3.1-8B endpoints_compatible region:us