Image-to-Video with Native Audio using Happy Horse 1.1
Animate a first-frame image into a 3-15 second video with native audio using Alibaba's Happy Horse 1.1. The video starts exactly from your image and keeps its aspect ratio, while an optional prompt directs the motion, style, and soundtrack at 480p, 720p, or 1080p.
What makes Happy Horse 1.1 different
Your image is the first frame
Upload a JPEG, PNG, or WEBP — at least 300px per side, up to 20MB — and the video starts exactly from it, preserving its aspect ratio. That makes composition predictable: what you frame in the still is what the clip opens on, whether it came from a photo shoot or an image node upstream on your Scenetra board.
Motion and soundtrack from one optional prompt
The prompt is optional — Happy Horse 1.1 can animate an image on its own — but a short one gives you the director's chair: name the action, the camera move, and the audio you want. Dialogue, music, and sound effects are generated natively with the picture, at no extra cost on top of the per-second rate.
3 to 15 seconds, priced per second
Choose any whole-second duration from 3 to 15. Short 3-second tests cost about $0.21 at 480p, so you can cheaply check whether an image animates well before committing to a 15-second 1080p render. Billing is strictly per second at every resolution.
Chain it after an image model
On a Scenetra board, wire a text-to-image node — Nano Banana 2, FLUX.2 Pro, Seedream — straight into a Happy Horse 1.1 Image to Video node. Generate the perfect still, then animate it with sound in one flow, all billed at provider cost with 0% markup.
Playground
A timelapse of a flower blooming in a sunlit meadow, cinematic quality
Drop images or click to upload
Try Happy Horse 1.1 in Scenetra
Open PlaygroundParameters
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | text | Optional prompt guiding the motion, style, and audio of the animation. | — |
| Image* | image upload | First-frame image. The video starts from this image and keeps its aspect ratio. JPEG/PNG/WEBP, at least 300px per side, up to 20MB. | — |
| Duration | select | Duration of the video in seconds, any whole second from 3 to 15.3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 | 5 |
| Resolution | select | Output resolution. 1080p is the model's default; 480p is the budget rung.480p · 720p · 1080p | 1080p |
Pricing
From $0.07 per second, audio included
Pay per generation — only pay for what you use.
480p
$0.07/s
per second
720p
$0.099/s
per second
1080p
$0.128/s
per second
What a video costs
| Duration | 480p | 720p | 1080p |
|---|---|---|---|
| 5 seconds | $0.35 | $0.49 | $0.64 |
| 10 seconds | $0.70 | $0.99 | $1.28 |
Use cases
Portraits & characters
- Talking portrait clips
- Character intros with sound
- Animate generated art
- Expression and motion tests
Product & e-commerce
- Animate product photos
- Listing videos from stills
- Showcase clips with music
- Seasonal campaign variants
Social content
- Bring photos to life
- Sound-on hooks
- Vertical story clips
- Meme animation
Film & previz
- Animate concept art
- Key-frame previz
- Establishing shots from stills
- Mood pieces with ambience
Related models
MiniMax H3 Image-to-Video
Animate any image into a 5-15 second video with MiniMax H3 (Hailuo 03). The clip starts exactly on your uploaded first frame, you can optionally pin a last frame to control where the motion lands, and stereo audio — dialogue, music, and SFX — is rendered natively in the same pass. Output from 480P up to 4K.
View model →Seedance 2.5 Image-to-Video
Animate any image into a cinematic video up to 30 seconds with Seedance 2.5 by ByteDance. Start from a first-frame image, optionally set a last frame to control the ending, and get synchronized audio by default. Output preserves your image's aspect ratio.
View model →PixVerse v6
Animate any image into a 1-15 second video with PixVerse v6. Upload a first-frame image (JPEG, PNG or WEBP up to 20MB), describe the motion, and generate at 360p to 1080p with optional synchronized audio and multi-shot sequences — the output keeps your image's aspect ratio. From $0.02 per second.
View model →Grok Imagine Video v1.5
xAI's latest image-to-video model. Grok Imagine Video v1.5 animates a single input image into a video up to 15 seconds long with synchronized audio generated at no extra cost. Pick 480p for fast iteration, or 720p and 1080p for production-quality output.
View model →Frequently asked questions
How does Happy Horse 1.1 image-to-video work?+
You upload a first-frame image and the model generates a 3-15 second video that starts exactly from it, keeping the image's aspect ratio. An optional prompt guides the motion, style, and audio. On Scenetra: drop a Happy Horse 1.1 Image to Video node on your board, connect or upload the image, and generate — no API key needed.
Does the animated video include audio?+
Yes — Happy Horse 1.1 generates native audio with every clip: ambient sound, music, effects, and dialogue when your prompt calls for it. Audio is included in the per-second price rather than billed as an add-on.
How much does Happy Horse 1.1 image-to-video cost?+
$0.07 per second at 480p, $0.099 at 720p, and $0.128 at 1080p, audio included. Animating a photo into a 5-second 1080p clip costs about $0.64; a 10-second one about $1.28. Everything is billed at provider cost with 0% markup, pay-per-generation.
What image formats and sizes does it accept?+
JPEG, PNG, or WEBP, at least 300px per side, up to 20MB. The output video keeps your image's aspect ratio, so frame the still the way you want the clip framed — there's no separate aspect-ratio setting in this mode.
Do I need to write a prompt to animate an image?+
No — the prompt is optional, and the model can infer natural motion from the image alone. Writing a short one gives better control though: describe the action ('steam rises from the cup'), the camera ('slow push in'), and the sound ('soft cafe chatter'). Describe motion, not the image — the model already sees your upload.
Can I generate the image and animate it in one workflow?+
Yes — that's what Scenetra's node-based editor is for. Wire any image model's output into the Happy Horse 1.1 Image to Video node's image input, and the board runs the whole chain: prompt to still to animated clip with audio. Free welcome credits and a 7-day trial cover your first runs.
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