gguf meta llama-3 text-generation en arxiv:2309.00071 arxiv:2402.08268 base_model:gradientai/Llama-3-8B-Instruct-Gradient-1048k base_model:quantized:gradientai/Llama-3-8B-Instruct-Gradient-1048k license:llama3 endpoints_compatible region:us conversational