gguf facebook meta pytorch llama llama-3 instruct chat conversational quantized text-generation en de fr it pt hi es th arxiv:2204.05149 base_model:meta-llama/Llama-3.1-8B-Instruct base_model:quantized:meta-llama/Llama-3.1-8B-Instruct license:llama3.1 endpoints_compatible region:us