transformers safetensors llava image-text-to-text llama-factory text-generation conversational dataset:asadfgglie/BanBan_2024-10-17-DPO base_model:asadfgglie/banban-vision-8b-v1.2-zh base_model:finetune:asadfgglie/banban-vision-8b-v1.2-zh endpoints_compatible region:us