transformers tensorboard safetensors mistral text-generation alignment-handbook trl sft generated_from_trainer conversational dataset:HuggingFaceH4/ultrachat_200k base_model:sanchit-gandhi/distil-zephyr-1.5b-ssft-ultrachat base_model:finetune:sanchit-gandhi/distil-zephyr-1.5b-ssft-ultrachat autotrain_compatible text-generation-inference endpoints_compatible region:us