Reference to Video: AI Image-to-Video Generator
Happy Horse 1.1 Reference to Video (1080p) — generate 1080p video conditioned on 1-9 reference images plus a text prompt.
Happy Horse 1.1 Reference to Video (1080p) — generate 1080p video conditioned on 1-9 reference images plus a text prompt.
About this model
Happy Horse 1.1 Reference to Video (1080p) is an advanced video generation tool that conditions output on 1–9 reference images plus a text prompt, creating highly controlled 1080p video with consistent visual elements across frames. By providing multiple reference images, you guide the model's composition, style, and character consistency—resulting in cohesive, professional-quality video. The seed parameter allows deterministic generation for reproducible results, making it ideal for iterative creative work and controlled visual production.
Happy Horse 1.1 Reference-to-Video is perfect for visual directors, production designers, game developers, and teams requiring pixel-perfect consistency across video sequences. Access it through muapi's unified API with straightforward per-generation pricing and full creative control.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $0.90 per generation | Transparent per-generation pricing with no per-image surcharges for reference images. Cost-effective, controlled video generation with full visual consistency guidance. |
Transparent per-generation pricing with no per-image surcharges for reference images. Cost-effective, controlled video generation with full visual consistency guidance.
* Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | string | Text description of the desired video. Up to 5,000 characters. | Place @image1 inside @image2 running across countertops while giant cooking disasters happen everywhere. Exploding soup pots, flying vegetables, and fire bursts create chaos. |
| Reference Images | array | 1-9 reference image URLs. JPEG/PNG/WEBP, >=400px shortest side, <=10 MB each. | https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-reference-to-video-1080p-1.jpg |
| Aspect Ratio | Enum (5 options) | Output video aspect ratio. | 16:9 |
| Duration (seconds) | int | Video duration in seconds. | 5 |
| Seed | int | Optional random seed for reproducibility (0-2147483647). | 0 |
Text description of the desired video. Up to 5,000 characters.
Place @image1 inside @image2 running across countertops while giant cooking disasters happen everywhere. Exploding soup pots, flying vegetables, and fire bursts create chaos.1-9 reference image URLs. JPEG/PNG/WEBP, >=400px shortest side, <=10 MB each.
https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-reference-to-video-1080p-1.jpgOutput video aspect ratio.
16:9Video duration in seconds.
5Optional random seed for reproducibility (0-2147483647).
0Developer documentation
Frequently asked
Happy Horse 1.1 Reference to Video (1080p) costs $0.90 per generation on muapi. Whether you provide 1 or 9 reference images, the cost remains flat at $0.90 per video. No subscriptions or per-image surcharges.
Reference images guide the model's understanding of visual style, character appearance, color palette, composition, and design language. The model uses them as constraints while animating according to your text prompt, ensuring consistency across the video.
The seed ensures deterministic generation—submitting the same prompt, references, and seed value will produce identical (or nearly identical) videos. This is useful for reproducing results, testing variations, or ensuring consistency across projects.