Happy Horse Video Edit
alibaba/happy-horse/video-editHappy Horse Video Edit by Alibaba - AI-powered video editing and transformation. Apply style transfer, motion control, lip-sync, and visual effects to existing videos with natural language instructions.
- Base price
- $1.40USD / run
- Execution
- async
- Model type
- video
- Input fields
- 6
Try the model
Playground
PNG, JPEG, WebP, or GIF · 20 MiB maximum each
Examples
Select an example to load its inputs and result into the playground.
Model card
Specifications
Pricing
- Base price
- $1.40 / run
Context & modalities
- Input
- Schema-defined
- Output
- video
Capabilities
- Chat
- Not supported
- Vision
- Not supported
- Reasoning
- Not supported
- Structured output
- Not supported
- Function calling
- Not supported
- Audio input
- Not supported
Access
- Provider
- Alibaba
- Model ID
- alibaba/happy-horse/video-edit
- Execution
- async
- Base URL
- https://api.sandbase.ai
- API
- Unified Run API
- Endpoint
- /v1/run
API README
Happy Horse Video Edit
Edit an existing clip with Happy Horse: restyle it, change objects or wardrobe, or rework the scene with an instruction. Optional reference images show the target look; the source motion and length are kept.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Text instruction. |
video | video URL, required | — | Source clip, Video 1 in the prompt. |
resolution | 720p / 1080p | 720p | Sets the per-second rate. |
seed | integer | random | Fix it to compare prompt changes. |
reference_image_urls | image URL[] | — | Optional reference images for the new look. |
audio_setting | auto / origin | auto | auto regenerates audio to match the edit; origin keeps the source track. |
Billing
Alibaba bills the source and the edited output, which are the same length, so each source second bills twice: $0.28 at 720p and $0.48 at 1080p. The quote before submission assumes a 5-second source; the final charge uses the measured length.
| Source clip | 720p | 1080p |
|---|---|---|
| 3s | $0.84 | $1.44 |
| 5s | $1.40 | $2.40 |
| 10s | $2.80 | $4.80 |
| 15s | $4.20 | $7.20 |
Failed runs are not charged.
Prompting
- Lead with the change and say what must stay: “make it a watercolor animation; keep her face and the camera move”.
- Draft at 720p; edits bill twice the source length.
Limits
- Output length and framing follow the source video.
Also on SandBase
Other Happy Horse endpoints: alibaba/happy-horse/text-to-video, alibaba/happy-horse/image-to-video, alibaba/happy-horse/reference-to-video, alibaba/wan/2.7/video-edit (Wan alternative, bills output only).
Start building
Send your first request
OpenAI-compatible endpoint with unified authentication and usage tracking.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "alibaba/happy-horse/video-edit",
"video": "https://static.sandbase.ai/examples/alibaba/happy-horse/video-edit/input_video_0.mp4",
"prompt": "Recolor the sky to a deep purple sunset.",
"resolution": "720p",
"audio_setting": "auto"
}
SANDBASE_JSON
)
run_id=$(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"Choose your model
Compare models
| Model | Type | Default price | Released |
|---|---|---|---|
Happy Horse Video EditThis model Alibaba | Video | $1.40 / run | Apr 27, 2026 |
Alibaba | Video | $1.40 / run | Oct 4, 2026 |
Alibaba | Video | $2.80 / run | Oct 4, 2026 |
Alibaba | Video | $1.00 / run | Oct 4, 2026 |
Alibaba | Video | $2.00 / run | Oct 4, 2026 |
Alibaba | Video | $0.70 / run | Aug 24, 2026 |
Questions
FAQ
How do I call Alibaba Happy Horse Video Edit through SandBase?
Create a SandBase API key, then send requests with the model ID "alibaba/happy-horse/video-edit" to Unified Run API (/v1/run) at https://api.sandbase.ai. The request examples on this page show the exact payload.
Do I need a separate Alibaba account?
No. One SandBase API key and balance gives you access to Alibaba Happy Horse Video Edit and the other models in the catalog; you do not need to sign up with Alibaba separately.
