transformers pytorch safetensors mistral text-generation generated_from_trainer conversational en dataset:stingning/ultrachat dataset:openbmb/UltraFeedback arxiv:2305.18290 base_model:mistralai/Mistral-7B-v0.1 base_model:finetune:mistralai/Mistral-7B-v0.1 license:mit autotrain_compatible text-generation-inference endpoints_compatible region:us