transformers safetensors mixtral text-generation en dataset:ToheartZhang/JiuZhang3.0-Corpus-PT-CoT dataset:ToheartZhang/JiuZhang3.0-Corpus-PT-Tool dataset:ToheartZhang/JiuZhang3.0-Corpus-SFT arxiv:2405.14365 autotrain_compatible text-generation-inference endpoints_compatible region:us