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YouTube adds A/B testing, dynamic thumbnails, live dubbing

By The BriefBrief · Sources (3)
Filed: Sep 23, 2026 at 11:04 AM ET
https://www.thebriefbrief.news/story/548912
Summary: YouTube is rolling out new creator tools including video A/B testing, dynamic thumbnails, and live dubbing. The features rely on generative AI to try different tactics on a video and identify what performs best.
WHO: YouTube
WHAT: Introduced new creator tools: video A/B testing, dynamic thumbnails, and live dubbing using generative AI.
WHEN: Sep 23, 2026 at 10:30 AM ET
WHERE: Location not specified
WHY: Cause not yet established.
Sources (3): CNET News, TechCrunch, The Verge — Sign in for direct links

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