transformers gguf merge mergekit lazymergekit mlabonne/OmniBeagle-7B flemmingmiguel/MBX-7B-v3 CultriX/NeuralTrix-7B-dpo en base_model:CultriX/NeuralTrix-V2 base_model:quantized:CultriX/NeuralTrix-V2 endpoints_compatible region:us