gguf nvidia llama3.1 text-generation en dataset:nvidia/HelpSteer2 base_model:nvidia/Llama-3.1-Nemotron-70B-Instruct-HF base_model:quantized:nvidia/Llama-3.1-Nemotron-70B-Instruct-HF license:llama3.1 region:us imatrix conversational