gguf llama-3 llama Mixtral instruct finetune chatml DPO RLHF gpt4 distillation en arxiv:2305.18290 arxiv:2303.13375 arxiv:2212.13138 arxiv:2305.09617 arxiv:2402.07023 base_model:meta-llama/Meta-Llama-3-8B base_model:quantized:meta-llama/Meta-Llama-3-8B license:llama3 region:us