transformers safetensors llama text-generation mergekit merge conversational arxiv:2306.01708 base_model:MrRobotoAI/Fiction-Writer-3 base_model:merge:MrRobotoAI/Fiction-Writer-3 base_model:MrRobotoAI/llama3-8B-Special-Dark-v2 base_model:merge:MrRobotoAI/llama3-8B-Special-Dark-v2 autotrain_compatible text-generation-inference endpoints_compatible region:us