transformers gguf mathematics TensorBlock GGUF text-generation en dataset:hkust-nlp/dart-math-hard base_model:hkust-nlp/dart-math-llama3-8b-prop2diff base_model:quantized:hkust-nlp/dart-math-llama3-8b-prop2diff license:llama3 model-index endpoints_compatible region:us