Overview

• The company ended a two‑year pilot and is expanding the feature to millions of channels over the next few weeks.
• Creators can add additional audio tracks in many languages using Google’s Gemini models, which translate and synthesize speech to match delivery.
• In testing, more than 25% of watch time came from non‑primary‑language views, and Jamie Oliver’s channel reported a tripling of total views.
• Some creators, including Mark Rober, have attached as many as 30 language tracks to individual videos to reach audiences worldwide.
• YouTube is also trialing multi‑language thumbnails that show text in a viewer’s preferred language to further localize videos.