{"slug": "sona-one-transformer-replaced-our-15-candidate-generators-pre-ranker-and-ranker", "title": "Sona: one transformer replaced our 15+ candidate generators, pre-ranker and ranker in an A/B test [R]", "summary": "Yandex Music replaced its production recommender's 15+ candidate generators, pre-ranker and ranker with a single transformer model called Sona, according to an A/B test reported by the team. The company said the end-to-end generative recommender took over work previously split across specialized components.", "body_md": "Our production recommender at Yandex Music has 15+ candidate generators feeding pre-ranking and ranking models with hundreds of features. LLMs showed that one end-to-end model can take over work that used to be split across specialized components, and single-model generative recommenders have carrie", "url": "https://wpnews.pro/news/sona-one-transformer-replaced-our-15-candidate-generators-pre-ranker-and-ranker", "canonical_source": "https://aiflash.com/news/131516/", "published_at": "2026-10-05 17:00:37+00:00", "updated_at": "2026-10-05 17:16:41.166522+00:00", "lang": "en", "topics": ["artificial-intelligence", "machine-learning", "large-language-models", "generative-ai"], "entities": ["Yandex Music", "Sona"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/sona-one-transformer-replaced-our-15-candidate-generators-pre-ranker-and-ranker", "markdown": "https://wpnews.pro/news/sona-one-transformer-replaced-our-15-candidate-generators-pre-ranker-and-ranker.md", "text": "https://wpnews.pro/news/sona-one-transformer-replaced-our-15-candidate-generators-pre-ranker-and-ranker.txt", "jsonld": "https://wpnews.pro/news/sona-one-transformer-replaced-our-15-candidate-generators-pre-ranker-and-ranker.jsonld"}}