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World's Fair 2025

Teaching Gemini to Speak YouTube: Adapting LLMs for Video Recommendations to 2B+DAU - Devansh Tandon

Devansh Tandon

Overview

This talk details the adaptation of large language models (LLMs), specifically Gemini, for YouTube's recommendation system, aiming to improve user engagement for over 2 billion daily active users. The core thesis is that LLMs can revolutionize recommendation systems, potentially surpassing search applications in consumer impact. The approach involves creating a domain-specific language for videos and training a bilingual model capable of understanding both natural language and this new video token language.

Who should watch

Key takeaways

Notable quotes

*Recommendations is going to be a much bigger consumer application than search.*
*We're making the atomic units for a new language of YouTube videos.*
*LLMs are just augmenting recommendations. They bring these magical recommendation experiences.*

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Unofficial community note. Prefer the recording for nuance.