HappyHorse 1.0 Video Edit 1080p: AI Video Editor
Happy Horse 1.0 Video Edit (1080p) - modify an input video at 1080p using a natural-language instruction with optional reference images.
Happy Horse 1.0 Video Edit (1080p) - modify an input video at 1080p using a natural-language instruction with optional reference images.
About this model
Happy Horse 1.0 Video Edit applies natural-language instructions to an input video at 1080p, optionally guided by 0-5 reference images. Use it to modify wardrobe, props, environment, character details, or stylistic elements while preserving the source motion.
Accepts MP4/MOV inputs up to 60 seconds and 100 MB.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapi | $0.42/sec at 1080p | Flat per-second billing at 1080p - a 5-second clip costs $2.10. |
| Fal.ai | Not available | Happy Horse 1.0 Video Edit is not currently available on Fal.ai. |
| Replicate | Not available | Happy Horse 1.0 Video Edit is not currently available on Replicate. |
Flat per-second billing at 1080p - a 5-second clip costs $2.10.
Happy Horse 1.0 Video Edit is not currently available on Fal.ai.
Happy Horse 1.0 Video Edit is not currently available on Replicate.
* 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, drifting, jumps, and camera movement. Add glowing rocket exhaust, sparks scraping across supermarket floors, and exaggerated reactions from the panda during crashes and sharp turns. |
| 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, drifting, jumps, and camera movement. Add glowing rocket exhaust, sparks scraping across supermarket floors, and exaggerated reactions from the panda during crashes and sharp turns.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
Provide a video_url (MP4/MOV, 3-60s, <=100 MB, longer side <=2160px, shorter >=320px, frame rate >8 fps).
Write an edit instruction describing the change.
(Optional) Add up to 5 reference images via images_list (>=300px each side, <=10 MB).
Pick audio_setting (auto lets the model decide; origin preserves source audio).
Submit to POST /api/v1/happy-horse-1-video-edit-1080p and poll the result endpoint.
Frequently asked
MP4 and MOV (H.264 recommended), 3-60 seconds, up to 100 MB.
No - references are optional and improve adherence when the edit needs visual anchors.
Set `audio_setting` to `origin` to preserve source audio, or `auto` to let the model decide.
1080p.