Which AI video tools export vertical 9:16 video?

Most tools offer a 9:16 option now, but there is a real difference between composing for vertical and cropping to it.

Tools that crop generate at 16:9 and trim the sides. Subjects drift out of frame, on-screen text gets clipped, and anything composed for a wide shot loses its framing. You can usually spot it in the output.

Tools that compose natively — Leaxor among them — generate at 9:16 from the start, so every scene is framed for the aspect ratio it ships in. Leaxor exports 1080×1920 MP4 with captions positioned inside the safe zone, which is where platform UI won't cover them.

One check before you commit to a tool: generate a test video with on-screen text near the edges. If the text survives, it composed vertically. If it's clipped, it cropped.