transformers pytorch llava text-generation visual-question-answering arxiv:2312.14238 base_model:OpenGVLab/InternViT-6B-448px-V1-0 base_model:merge:OpenGVLab/InternViT-6B-448px-V1-0 base_model:lmsys/vicuna-13b-v1.5 base_model:merge:lmsys/vicuna-13b-v1.5 autotrain_compatible region:us