Runway Modify is powered by the Aleph model for text-guided video transformation. Upload a clip, write a detailed prompt, and let AI modify the footage with advanced editing technology. Supports multiple aspect ratios from vertical to cinematic ultra-wide.
Runway Modify is a text-guided AI video editing tool powered by the Runway Aleph model. It transforms existing video clips based on natural language descriptions — changing scenes, objects, styles, and visual elements while maintaining temporal consistency. The model supports multiple aspect ratios from portrait to ultra-wide and offers advanced options like reference images and seed values for reproducible results.
Describe the changes you want in natural language. Runway's Aleph model interprets your instructions and applies them precisely to the video footage.
Choose from 6 output ratios: 16:9 (landscape), 9:16 (portrait), 4:3 (standard), 3:4, 1:1 (square), and 21:9 (ultra-wide) for any platform.
Provide a reference image URL to guide the AI's styling decisions. Perfect for ensuring strict adherence to a specific visual aesthetic.
Use seed values to generate consistent modifications. Same seed + same prompt + same video produces similar results for reliable iterations.
Select videos from your existing library or upload new clips. Seamlessly build upon previously generated content.
Runway's Aleph model delivers high-fidelity transformations that maintain temporal consistency and visual quality throughout the modified clip.
Single pricing tier for this model.
Upload a video clip (up to 10 seconds, 500MB) or pick from your previously generated videos. Short clips produce the best results.
Describe the modifications in detail. Include style cues, lighting changes, and specific visual elements. Optionally add a reference image URL.
Runway Modify processes your video in 4-6 minutes. Download the transformed clip or find it in your video library.
10 credits per video modification. Advanced text-guided editing powered by the Runway Aleph model.
Transform your videos with text-guided AI editing. Multiple aspect ratios, reference image support, and reproducible results.
Start Editing with Runway ModifyCommon questions about Runway Modify video editing
Runway Modify is an AI video editing tool powered by the Runway Aleph model. It transforms existing video clips through text-guided edits — describe the changes you want, and the AI modifies the footage while maintaining temporal consistency.
Each Runway Modify transformation costs 10 credits. Credits are consumed once the modification task is accepted and processing begins by the API.
Runway Modify supports 6 aspect ratios: 16:9 (landscape), 9:16 (portrait), 4:3 (standard), 3:4, 1:1 (square), and 21:9 (ultra-wide), covering all major platforms and use cases.
Yes, you can provide a reference image URL in the advanced options to guide the AI's styling decisions. This is useful when you need strict adherence to a specific visual style or brand aesthetic.
Runway Modify typically takes 4-6 minutes depending on video complexity and settings. You can navigate away during processing — results appear in My Videos when complete.
Seeds are numerical values that help reproduce similar results. Using the same seed with the same prompt and video generates more consistent modifications — useful for creating variations or refining your edits.
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