Runway just pushed a new capability to its Edit Studio: upload a video, pick a new aspect ratio, and Aleph 2.0 fills in the missing parts of the scene as if it was always shot that way. No black bars, no awkward cropping, no reshoots. The model synthesizes new visual content to complete the frame.
One shoot, every feed
The core problem is familiar to anyone who has shipped video content across platforms. A 16:9 brand video looks terrible on TikTok. A vertical Instagram Reel gets letterboxed on YouTube. Until now, the options were either crop and lose content, or go back to the editing suite and manually extend the frame. Aleph lets you adapt existing footage for new contexts by changing aspect ratios, camera views, lighting, or visual tone to fit different platforms. Footage filmed horizontally can be reframed for mobile with a vertical crop and a new focal point.
Aleph supports multiple aspect ratios including 16:9, 4:3, 1:1, 3:4, and 9:16, so you can optimize output for any platform from widescreen YouTube to vertical TikTok content without awkward cropping or black bars. The model does not just crop. It generates the new portions of the scene to match the existing footage, preserving lighting, motion, and visual continuity.
What Aleph 2.0 actually is
Aleph 2.0 is Runway's upgraded flagship video editing model for transforming existing footage while keeping the rest of the clip stable. It is built for precise localized edits, single-frame visual guidance, and consistent edits across cuts and scene changes. Think of it as the opposite of a text-to-video generator. Instead of hallucinating a scene from scratch, it takes your real footage and surgically changes only what you ask.
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