Bing video creator (https://www.bing.com/images/create?FORM=Bvcmc1&ctype=video) generates 5-second videos from the Bing iOS or Android app.

Based on Open AI’s Sora. 9:16 aspect ratio, mp4 export. Text-in-picture seems to be supported, with no handling of camera movements.

Presentation: https://blogs.bing.com/search/June-2025/Introducing-Bing-Video-Creator

10 quick generations (then 100 “Microsoft rewards” per quick generation) or unlimited standard generations.