transformers safetensors sparsetral text-generation conversational custom_code en dataset:teknium/OpenHermes-2.5 dataset:jondurbin/truthy-dpo-v0.1 dataset:jondurbin/gutenberg-dpo-v0.1 dataset:argilla/dpo-mix-7k arxiv:2401.01335 arxiv:2401.02731 license:apache-2.0 autotrain_compatible endpoints_compatible region:us