transformers safetensors mixtral text-generation dpo merge mergekit base_model:mistralai/Mixtral-8x7B-Instruct-v0.1 base_model:finetune:mistralai/Mixtral-8x7B-Instruct-v0.1 license:cc-by-nc-nd-4.0 autotrain_compatible text-generation-inference endpoints_compatible region:us