gguf quantized GGUF imatrix quantization imat static text-generation en dataset:teknium/OpenHermes-2.5 base_model:NousResearch/Hermes-2-Theta-Llama-3-8B base_model:quantized:NousResearch/Hermes-2-Theta-Llama-3-8B license:apache-2.0 region:us conversational