YouTube launches multilingual audio feature after two-year trial, with more than 25% of video viewing time in languages other than the primary language

On September 10, 2025, YouTube announced that it would officially roll out a ' multilingual audio feature ' to millions of creators, allowing them to add multilingual voiceovers to their videos.

Unlock a world of viewers with multi-language audio - YouTube Blog
https://blog.youtube/news-and-events/multi-language-audio/

YouTube's multi-language audio feature for dubbing videos rolls out to all creators | TechCrunch
https://techcrunch.com/2025/09/10/youtubes-multi-language-audio-feature-for-dubbing-videos-rolls-out-to-all-creators/

This feature was offered on a trial basis to a limited number of creators, including MrBeast , Mark Rober , and Jamie Oliver , as part of a two-year pilot program starting in 2023.

Initially, creators had to use third-party dubbing services to prepare their voiceovers, but YouTube has since introduced its own AI-powered auto-dubbing tool.

YouTube releases automatic dubbing feature that generates translated audio tracks such as 'English to Japanese' - GIGAZINE

Creators who have tested the feature have seen an average of more than 25% of their watch time come from viewers in languages other than the primary language of their videos, and YouTube reports that Jamie Oliver's channel saw a three-fold increase in views after implementing the multilingual audio feature.

YouTube is also working with some creators to test a 'multilingual thumbnail' feature that will display images optimized for viewers' language settings, starting in June 2025.