transformers safetensors mistral text-generation dpo rlaif preference ultrafeedback conversational en dataset:argilla/ultrafeedback-binarized-preferences base_model:argilla/notus-7b-v1 base_model:quantized:argilla/notus-7b-v1 license:mit model-index autotrain_compatible text-generation-inference 4-bit gptq region:us