transformers tensorboard safetensors mixtral text-generation dpo rlaif preference ultrafeedback moe conversational en de es fr it dataset:argilla/ultrafeedback-binarized-preferences-cleaned base_model:mistralai/Mixtral-8x7B-Instruct-v0.1 license:apache-2.0 autotrain_compatible text-generation-inference endpoints_compatible region:us