transformers tensorboard safetensors starcoder2 text-generation alignment-handbook generated_from_trainer conversational dataset:HuggingFaceH4/ultrafeedback_binarized dataset:HuggingFaceH4/orca_dpo_pairs arxiv:2311.07911 arxiv:2402.19173 base_model:HuggingFaceH4/starchat2-15b-sft-v0.1 base_model:finetune:HuggingFaceH4/starchat2-15b-sft-v0.1 autotrain_compatible text-generation-inference endpoints_compatible region:us