transformers gguf merge mergekit lazymergekit mlabonne/OmniBeagle-7B CultriX/NeuralTrix-7B-dpo CultriX/NeuralTrix-V2 en base_model:CultriX/NeuralTrix-v4-bf16 base_model:quantized:CultriX/NeuralTrix-v4-bf16 endpoints_compatible region:us