transformers tensorboard safetensors mistral text-generation alignment-handbook generated_from_trainer trl sft conversational dataset:HuggingFaceH4/ultrachat_200k base_model:sanchit-gandhi/Mistral-1.5B-v0.1 base_model:finetune:sanchit-gandhi/Mistral-1.5B-v0.1 autotrain_compatible text-generation-inference endpoints_compatible region:us