transformers gguf mistral quantized 2-bit 3-bit 4-bit 5-bit 6-bit 8-bit GGUF text-generation qwen qwen-2 base_model:MaziyarPanahi/calme-2.5-qwen2-7b base_model:quantized:MaziyarPanahi/calme-2.5-qwen2-7b text-generation-inference region:us