transformers gguf mistral quantized 2-bit 3-bit 4-bit 5-bit 6-bit 8-bit GGUF text-generation phi phi-3 base_model:MaziyarPanahi/calme-2.2-phi3-4b base_model:quantized:MaziyarPanahi/calme-2.2-phi3-4b text-generation-inference region:us