Yandex Introduces Sona: A Single Generative Recommender That Replaces Entire Recommendation Cascade
Yandex's Sona transformer replaced Music's recommendation cascade and lifted likes 11.42% in testing.
Yandex introduced Sona, a single generative recommender that uses one transformer for both candidate generation and ranking instead of a multi-stage cascade. In a Yandex Music A/B test it operated without hand-engineered features and increased likes by 11.42%. The announcement does not report parameter counts or comparisons beyond that test.
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