gguf quantized GGUF quantization imat imatrix static 16bit 8bit 6bit 5bit 4bit 3bit 2bit 1bit text-generation en dataset:openbmb/UltraFeedback base_model:UCLA-AGI/Llama-3-Instruct-8B-SPPO-Iter3 base_model:quantized:UCLA-AGI/Llama-3-Instruct-8B-SPPO-Iter3 license:apache-2.0 region:us conversational