Video Edit: AI Video Editor
Happy Horse 1.1 Video Edit (720p) — modify an input video using natural-language instructions with optional reference images.
Happy Horse 1.1 Video Edit (720p) — modify an input video using natural-language instructions with optional reference images.
About this model
Happy Horse 1.1 Video Edit (720p) lets you transform any video using natural-language instructions. Upload a video and describe the visual changes you want—add effects, change the mood, modify colors, alter compositions, or apply artistic styles. The model preserves the original motion and timing while applying your requested modifications, optionally using reference images to guide the transformation.
Ideal for content creators, editors, and marketers who want to iterate on video styles without re-shooting. With muapi's pay-per-generation pricing, you can experiment with multiple edits and variations on a single video in seconds, without any subscription commitment.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $0.70 per generation | Pay-per-use pricing with no subscription. Each video edit is a transparent $0.70 charge, making it cost-effective for iterative creative work and batch editing. |
Pay-per-use pricing with no subscription. Each video edit is a transparent $0.70 charge, making it cost-effective for iterative creative work and batch editing.
* Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | string | Edit instruction describing the change to apply to the video. | Replace the horse with @image1 and replace the shopping cart with @image2 while preserving the original high-speed motion and camera movement. |
| Video URL | string | Source video URL. MP4/MOV (H.264 recommended), 3-60s, <=100 MB, longer side <=2160px, shorter >=320px, frame rate >8 fps. | https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-reference-to-video-720p.mp4 |
| Reference Images | array | Optional 0-5 reference image URLs to guide the edit. | https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-video-edit-1080p-1.jpg |
| Audio Setting | Enum (2 options) | Audio strategy: 'auto' lets the model decide, 'origin' preserves source audio. | auto |
| Seed | int | Optional random seed for reproducibility (0-2147483647). | 0 |
Edit instruction describing the change to apply to the video.
Replace the horse with @image1 and replace the shopping cart with @image2 while preserving the original high-speed motion and camera movement.Source video URL. MP4/MOV (H.264 recommended), 3-60s, <=100 MB, longer side <=2160px, shorter >=320px, frame rate >8 fps.
https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-reference-to-video-720p.mp4Optional 0-5 reference image URLs to guide the edit.
https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-video-edit-1080p-1.jpgAudio strategy: 'auto' lets the model decide, 'origin' preserves source audio.
autoOptional random seed for reproducibility (0-2147483647).
0Developer documentation
Frequently asked
Video editing with Happy Horse 1.1 costs $0.70 per generation on muapi. This covers one full video transformation from prompt. You can run multiple edits on the same source video for iterative refinement.
Yes. The model accepts an optional images_list parameter, allowing you to supply reference images that show the visual direction, mood, or aesthetic you want applied to your video.
The Happy Horse 1.1 model outputs 720p video. It accepts standard video formats (MP4, MOV, WebM, etc.) as input via URL. Processing time depends on video length and complexity of the requested edits.