Yandex Unveils Unified Recommendation Model Sona

Yandex has unveiled the new Sona model, which completely overhauled its recommendation pipeline. This system replaces a cascade of dozens of separate models with a single solution.

The model independently handles candidate retrieval, ranking, and the generation of the final results feed.

During testing of music recommendations for smart speakers, the new architecture demonstrated significant improvements in user interaction.

• Sona replaced a system consisting of numerous generators
• Requests to replay recommended tracks increased by 18% over the course of a week-long test

The company notes that it was the first in the world to publicly describe such a solution and validate it with real users.