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DER.run
Video model · by AlibabaFree

HappyHorse 1.0

Video from text, a photo, and reference images and clips. Makes 5, 10, or 15 second clips from text, a photo, or reference images and clips.

  • References
  • Editing
  • Cinematic
  • Image to video
  • Text to video

From ≈ $0.136 a second · 13.6 credits

  • No samples yet

Specs

Modes
Text to video · Image to video · References
Duration
5, 10, or 15 s
Resolution
720p · 1080p
Aspect ratio
16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 4:5 · 5:4 · 9:21 · 21:9
Frames
A start image
Reference files
Up to 9 images
File types
PNG, JPEG, WEBP · up to 20 MB / MP4, WebM · up to 200 MB
Tier
Free — everyone can use it

Price

Pricing
From
≈ $0.136 / s13.6 credits a second
  • 5 s video≈ $0.68
  • 10 s video≈ $1.36
  • 15 s video≈ $2.04

The studio shows the exact price before you generate. Failed runs are refunded.

API

Use HappyHorse 1.0 from code

Model id happyhorse. Same price and limits as the studio.

REST · POST /v1/jobs
curl -X POST "https://api.der.run/v1/jobs" \
  -H "Authorization: Bearer $DER_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "happyhorse",
    "params": {
      "model_version": "1.0",
      "mode": "t2v",
      "duration": 5,
      "prompt": "…"
    }
  }'

# then poll every 15 s until it’s finished
curl "https://api.der.run/v1/jobs/{id}" \
  -H "Authorization: Bearer $DER_API_KEY"

FAQ

About HappyHorse 1.0

How long can a HappyHorse 1.0 video be?

5, 10, or 15 seconds. Longer clips cost more — the studio shows the price first.

How long are my videos kept?

7 days. Keep the ones you want in your Library (up to 200) so they don’t expire.
All questions

Make your next clip

HappyHorse 1.0 · 5 / 10 / 15 s · from about $0.136 a second

Try HappyHorse 1.0