LTX-2.3 Reframe converts your videos to any aspect ratio without destructive cropping. It intelligently recenters the original footage and generatively fills the newly exposed areas with content that seamlessly matches the scene, so the result looks like it was shot natively in the target format. Turn landscape footage into vertical 9:16 for social, square 1:1 for feeds, or anything in between. Supports videos up to 60 seconds, with 720p and 1080p outputs across 1:1, 4:5, 5:4, 9:16 and 16:9.
The URL of the video to reframe. Must be publicly accessible or a base64 data URI. The video is re-cropped to the target aspect ratio and the newly exposed areas are filled with generated content that matches the original. Max duration 60 seconds.
resolution
stringenum: 720p, 1080p
The target output resolution tier. Combined with the aspect ratio to determine the output size.
