transformers mixtral text-generation moe merge mergekit lazymergekit phi3_mergekit microsoft/Phi-3-mini-4k-instruct custom_code base_model:microsoft/Phi-3-mini-4k-instruct base_model:finetune:microsoft/Phi-3-mini-4k-instruct license:apache-2.0 autotrain_compatible text-generation-inference endpoints_compatible region:us