transformers gguf nvidia llama3.1 en dataset:nvidia/HelpSteer2 base_model:huihui-ai/Llama-3.1-Nemotron-70B-Instruct-HF-abliterated base_model:quantized:huihui-ai/Llama-3.1-Nemotron-70B-Instruct-HF-abliterated license:llama3.1 endpoints_compatible region:us imatrix conversational