PyTorch safetensors llama text generation instruct function calling role-play finetune RLHF Yuna AI Chatbot RAG LLM DPO TaMeR EliTA Enhanced GGUF dialogue conversation distillation text2text-generation en dataset:yukiarimo/tamer-novel base_model:yukiarimo/yuna-ai-v2 base_model:finetune:yukiarimo/yuna-ai-v2 license:afl-3.0 model-index region:us