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runwayml/gen4-aleph
Official
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A new way to edit, transform and generate video
Capabilities
Reference Images
Seed
Cost
Community model (estimated from hardware time)
Input Parameters
| Name | Type | Description | Default | Constraints |
|---|---|---|---|---|
prompt * | string | Text prompt for video generation | — | — |
video * | string (uri) | Input video to generate from. Videos must be less than 16MB. Only 5s of the input video will be used. | — | — |
aspect_ratio | string | Video aspect ratio | "16:9" | 16:9 9:16 4:3 3:4 1:1 21:9 |
reference_image | string (uri) | Reference image to influence the style or content of the output. | — | — |
seed | integer | Random seed. Set for reproducible generation | — | — |
prompt required string Text prompt for video generation
video required string Input video to generate from. Videos must be less than 16MB. Only 5s of the input video will be used.
aspect_ratio string Video aspect ratio
Default:
"16:9" 16:9 9:16 4:3 3:4 1:1 21:9
reference_image string Reference image to influence the style or content of the output.
seed integer Random seed. Set for reproducible generation
Version:
68cabc3b111f Updated: 6/26/2026 248.9K runs