YouTube has reversed its previous stance, now allowing creators to upload custom thumbnails for Shorts content. Alongside this, the platform is introducing an AI-powered thumbnail generation feature for long-form videos. These updates aim to bolster creator support, enhance the viewer experience, and address long-standing demands from the creator community, ultimately boosting content discoverability.
Custom Thumbnails for Shorts: Expanding Creator Freedom
YouTube has begun rolling out a custom thumbnail upload feature for Shorts videos, initially available to creators participating in the Partner Program (YPP). This new capability allows creators to upload their own images as thumbnails, moving beyond the previous restriction of selecting only from video frames provided by the platform. This change offers creators a better opportunity to showcase their content's individuality, addressing what YouTube described as one of their "most requested" features.
Previously, in May 2025, YouTube's Head of Shorts Product, Todd Sherman, stated that thumbnails held less importance for Shorts because viewers rapidly scroll through feeds rather than using thumbnails for video discovery. At the time, YouTube explicitly noted that the limitation on thumbnail functionality was intentional. However, the platform has now reversed its position, asserting that custom thumbnails will help viewers discover content more easily and set appropriate expectations. Currently, desktop users can select from three recommended thumbnail frames, while the mobile app continues to allow selection of any frame from within the video, as before.
AI Thumbnail Generation Added to 'Ask Studio' for Long-Form Videos
In addition to Shorts, YouTube is integrating an AI-powered thumbnail generation feature into 'Ask Studio' for creators of long-form videos. This functionality allows creators to request thumbnails for specific videos and fine-tune colors and layouts using chat prompts. YouTube states that these AI-generated thumbnails will be tailored to match the video's theme and the creator's individual style.
However, the realm of AI-generated thumbnails has not been without controversy. In June 2025, renowned YouTuber MrBeast launched an AI thumbnail generator on his analytics platform, Viewstats. This feature was met with criticism from other creators, who alleged that it was trained on existing thumbnails without authorization, leading MrBeast to remove it just days after its release. In its recent announcement, YouTube did not specify how 'Ask Studio's' AI thumbnail generator was trained or whether it utilizes content uploaded by creators.
