Runway Aleph is Rivya's source-video AI editor for transforming existing clips with prompt-guided visual changes, optional reference images, and scene rewrites without generating from scratch.
The final task cost is rounded up to whole credits.
Example output
Example; generating model unverified · Preview for a brutalist rooftop sunrise scene, focused on scene setup, camera path, motion continuity, editable details, and the final frame.
Video Rewrite · Source Clip Transformation
Example output
Example; generating model unverified · Preview for a brutalist rooftop sunrise scene, focused on scene setup, camera path, motion continuity, editable details, and the final frame.
Best for
Supports
Online trial
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Prompt starters
Model examples
Browse template previews for ideas. Each caption indicates whether generation with this model has been verified.
Example; generating model unverified · Preview for a brutalist rooftop sunrise scene, focused on scene setup, camera path, motion continuity, editable details, and the final frame.
Example; generating model unverified · Preview for a reference image-to-video brief, focused on scene setup, camera path, motion continuity, editable details, and the final hero frame.
Example; generating model unverified · Environment clip focused on molten light, steam, wall texture, camera pace, and scale.
Example; generating model unverified · Vertical retro-phone prompt focused on 2007-style artifacts, handheld motion, delayed focus, lens-touch blur, rain continuity, and the final wave.
Decision fit
Decision fit
Runway Aleph FAQ
Runway Aleph is best when the motion and timing in the source clip are already worth keeping, but the look still needs to change. It works well for approved footage rewrites, alternative art-direction passes on demos or trailers, and source-video transformations where the creative question is how to reinterpret the clip, not how to generate new motion from scratch.
On Rivya, this option is built around one source video plus an optional reference image. Public controls stay focused on transformation essentials: aspect ratio, watermark text, and seed. It is a dedicated video-to-video rewrite option, not a blank-sheet text or image generator.
The first question is whether the source clip already has the motion you want to preserve. If it does, the next decision is whether one prompt and maybe one still reference are enough to steer the new look. In practice, source quality, rewrite clarity, and whether you need repeatable seed tests matter more here than piling on more input complexity.
Rivya currently lists a fixed 90 credits per generation. That is easiest to justify when rerunning the whole shot would be wasteful, because the source clip is already doing the right motion work and the value is in a deliberate rewrite pass.
Start here when the first result is about finding out whether one existing clip can survive a serious prompt-led rewrite. Use it for approved footage that already has the right motion, but still needs a different visual direction.
This page supports one source video and one optional reference image. Before the first result, you can set aspect ratio, add watermark text if needed, and set a seed for repeatability. The point is to pressure-test a rewrite on top of an existing clip, not to build a new shot from scratch.
First make sure the source clip is actually the one whose motion you want to keep. Then decide whether the rewrite needs the optional reference image, whether the output shape should change, and whether seed repeatability matters for comparisons. Those checks usually tell you more than rewriting the prompt over and over.
The page is public, but the actual rewrite run is still gated behind sign in. Rivya currently lists a fixed 90 credits per generation, so you can inspect the source clip, settle the rewrite goal, and decide on the output shape first, then sign in when you are ready to run it.
Stay on this page while you are checking one source clip and deciding whether the rewrite is working. Open the full Studio once the project needs saved versions, multiple clips, or a longer managed transformation project around the same footage.
Compare alternatives
Seedance 2.5 is Rivya's larger Seedance workflow for prompt-only video, first- and last-frame guidance, multimodal references, and video-guided transformation. It adds a 1080p tier, output up to 30 seconds, automatic duration, MP4 or MOV output, and substantially larger image, video, and audio reference capacity than Mini.
Why consider it
Consider it when your next task needs Up to 50 reference files.
ByteDance's full Seedance 2.0 video model with explicit support for prompt-only generation, frame-driven animation, and multimodal reference generation. Rivya keeps the documented role split explicit so frame inputs and multimodal references stay mutually exclusive instead of collapsing into one ambiguous upload bucket.
Why consider it
Consider it when your next task needs Prompt, frames, or image/video/audio references.
ByteDance's faster Seedance 2.0 video model with full scene routing for prompt-only generation, frame-driven image animation, and multimodal reference video generation. Rivya keeps the documented scene split explicit so first/last-frame inputs do not collide with reference image, video, and audio roles.
Why consider it
Consider it when your next task needs Prompt, frames, or image/video/audio references.
Best-fit tasks
Use it when the task looks like this
Model details
Provider
Runway
Category
Video
Capabilities
Video Rewrite · Source Clip Transformation
Credit model
Credit rate: 90 / video
Input path
1 source video + optional image
Prompt setup
Up to 5,000 chars
