seedinteger
Random seed for reproducible results. Set to -1 for random seed.
Happy Horse Image to Video
alibaba/happy-horse/image-to-videoAlibaba's #1-ranked Happy Horse 1.0 generates stunning 1080p videos with synchronized native audio and multilingual lip-sync, transforming text prompts or images into cinematic, true-to-life motion content for next-generation AIGC creation.
Try the model
Playground
Input
PNG, JPEG, WebP, or GIF · 20 MiB maximum
The URL of the source image to animate into a video.
This field is required.
Optional text prompt to guide the video generation.
Additional Settings More
Customize your input with more control.
The duration of the generated video in seconds. Allowed values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
The resolution of the video to generate. Allowed values: 720p, 1080p.
Random seed for reproducible results. Set to -1 for random seed.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "duration": 3, "image": "https://static.sandbase.ai/examples/7c2cda62-fedf-4b96-85d4-46f905309272/input/10329729-dbe9-455b-8a28-d97fb57cb0c5.png", "prompt": "The black cat slowly looks up", "resolution": "720p" }
Human preference
Arena
Elo ratings from blind side-by-side votes, compared with other image and video models.
Rankings sourced from Artificial Analysis Arena
- Leaderboard
- Image to Video
- Rank
- #13 of 29
- Elo
- 1014 ±19
- Gap to #1
- −116
Image-to-video arena (silent): people pick the better of two clips animated from the same image, without seeing the model names; audio is not judged.
- #8Grok Imagine Video 1.51054±19
- #9FLUX 31036±19
- #10HappyHorse-1.11024±19
- #11Gemini Omni Flash 1.11022±19
- #12Kling 3.0 Omni 1080p (Pro)1020±19
- #13HappyHorse-1.01014±19
- #14Grok Imagine Video 1.5 Lite1003±19
- #15Kling 3.0 1080p (Pro)1000
- #16PixVerse V6966±19
- #17Veo 3.1955±19
Happy Horse Image to Video
Happy Horse 1.0 image-to-video: animate a picture over 3–15 seconds. prompt is optional; without it the model brings the scene to life on its own.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
image | image URL, required | — | First frame. JPEG, PNG, or WebP URL. |
prompt | string | Bring the scene in the image to life. | Optional direction for motion and camera. |
duration | 3–15 | 5 | Output length in seconds. |
resolution | 720p / 1080p | 720p | Sets the per-second rate. |
seed | integer | random | Fix it to compare prompt changes. |
Billing
You pay for output seconds: $0.14 at 720p and $0.24 at 1080p, Alibaba's list price.
| Output | 720p | 1080p |
|---|---|---|
| 3s | $0.42 | $0.72 |
| 5s (default) | $0.70 | $1.20 |
| 10s | $1.40 | $2.40 |
| 15s | $2.10 | $3.60 |
Failed runs are not charged.
Prompting
- Describe the motion and camera, not what is already in the picture.
Limits
- 720p and 1080p only.
Also on SandBase
Other Happy Horse endpoints: alibaba/happy-horse/text-to-video, alibaba/happy-horse/reference-to-video, alibaba/happy-horse/video-edit, alibaba/happy-horse/1.1/image-to-video (newer).
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "alibaba/happy-horse/image-to-video",
"image": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/wpimhv/rap.png",
"prompt": "Bring the scene in the image to life.",
"duration": 5,
"resolution": "720p"
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
status=$(printf '%s' "$result" | jq -r .status)
case "$status" in completed|failed|timeout) break ;; esac
sleep 2
result=$(curl --fail-with-body --silent \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
"https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"2. Authentication
Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep the key on your server. Do not expose it in browser code or commit it to a repository.
3. Queue
Submit a request
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
Fetch request status and result
Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.
curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
-H "Authorization: Bearer $SANDBASE_API_KEY"4. Files
Hosted files
Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.
Uploading images
Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.
5. Schema
Input
imagestringrequired
The URL of the source image to animate into a video.
promptstring
Optional text prompt to guide the video generation.
Default: "Bring the scene in the image to life."
durationinteger
The duration of the generated video in seconds.
Default: 5
Possible values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
resolutionstring
The resolution of the video to generate.
Default: "720p"
Possible values: "720p", "1080p"
{
"model": "alibaba/happy-horse/image-to-video",
"image": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/wpimhv/rap.png",
"prompt": "Bring the scene in the image to life.",
"duration": 5,
"resolution": "720p"
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"poster": "https://static.sandbase.ai/examples/posters/8bfe0ce48e7bfcdbd1e3.jpg",
"source": "Self organization completed prediction",
"source_url": "https://www.sandbase.ai",
"url": "https://static.sandbase.ai/examples/7c2cda62-fedf-4b96-85d4-46f905309272/output/a1e80424-3e01-4e8e-8175-0cac7651d468.mp4"
}
]