trl safetensors mistral distilabel dpo rlaif rlhf en dataset:argilla/dpo-mix-7k base_model:argilla/CapybaraHermes-2.5-Mistral-7B base_model:quantized:argilla/CapybaraHermes-2.5-Mistral-7B license:apache-2.0 4-bit awq region:us