sentence-transformers safetensors bert feature-extraction russian pretraining embeddings tiny sentence-similarity transformers mteb ru dataset:IlyaGusev/gazeta dataset:zloelias/lenta-ru base_model:cointegrated/rubert-tiny2 base_model:finetune:cointegrated/rubert-tiny2 license:mit model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us