transformers gguf mistral quantized 2-bit 3-bit 4-bit 5-bit 6-bit 8-bit GGUF safetensors phi text-generation nlp code custom_code en license:mit autotrain_compatible has_space region:us base_model:microsoft/phi-2 base_model:quantized:microsoft/phi-2 license:apache-2.0 text-generation-inference