transformers gguf mergekit merge arxiv:2311.03099 arxiv:2306.01708 base_model:TheDrummer/Rocinante-12B-v1 base_model:merge:TheDrummer/Rocinante-12B-v1 base_model:nothingiisreal/MN-12B-Celeste-V1.9 base_model:merge:nothingiisreal/MN-12B-Celeste-V1.9 base_model:nothingiisreal/MN-12B-Starcannon-v3 base_model:merge:nothingiisreal/MN-12B-Starcannon-v3 endpoints_compatible region:us conversational