HedraImage to videoComing soon

happy-horse

Name: happy-horse
Brand: Hedra

happy-horse is an image to video tool from Hedra that runs in the background and returns video. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Price pending

Pricing

Price pending.

Limits

Runs: In the background
Returns: video
Longest queue wait: 3600s
Run deadline: 3600s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`prompt` required	text	—	Generation prompt. From 1 to 2500 characters.
`resolution` required	one of 720p, 1080p	—	Output resolution.
`duration_ms` required	one of 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000, 11000, 12000, 13000, 14000, 15000	—	Duration in ms.
`aspect_ratio` required	one of 16:9, 9:16, 4:3, 3:4, 1:1	—	Output aspect ratio.
`seed`	number (whole) 0 to 2147483647	—	Seed for reproducible output; omit for a random seed. From 0 to 2147483647.
`images`	JSON	—	Reference images. 1 to 9 images, each at least 400px on each side and at most 10 MB.
`num_outputs`	one of 1	1	Number of outputs generated per job. Only 1 is supported.
`start_image`	JSON	—	A file uploaded via POST /v3/files, referenced by the returned url.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "hedra",
    "model": "happy-horse",
    "input": {
      "prompt": "<prompt>",
      "resolution": "720p",
      "duration_ms": 3000,
      "aspect_ratio": "16:9"
    }
  }'