transformers gguf merge mergekit lazymergekit anthracite-org/magnum-12b-v2 Sao10K/MN-12B-Lyra-v1 nothingiisreal/MN-12B-Celeste-V1.9 en base_model:GalrionSoftworks/Pleiades-12B-v1 base_model:quantized:GalrionSoftworks/Pleiades-12B-v1 endpoints_compatible region:us imatrix conversational