HedraAudio to videoComing soon

hedra-avatar

Name: hedra-avatar
Brand: Hedra

hedra-avatar is an audio 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: 1800s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`audio` required	JSON	—	Driving audio: a single reference, or a list of references for multi-speaker generation — one audio per speaker, played in list order. 1 to 4 audio files, each from 0.5s to 600s and at most 104.8 MB.
`prompt` required	text	—	Generation prompt.
`resolution` required	one of 540p, 720p, 1080p	—	Output resolution.
`start_image` required	JSON	—	A file uploaded via POST /v3/files, referenced by the returned url.
`aspect_ratio` required	one of 1:1, 4:3, 3:4, 16:9, 9:16, 9:21, 21:9	—	Output aspect ratio.
`duration_ms`	number (whole) … to 600000	—	Duration in ms. At most 600000.
`num_outputs`	one of 1	1	Number of outputs generated per job. Only 1 is supported.
`bounding_box_target`	JSON	—	Speaker position(s) in the start frame, as normalized [x, y] image coordinates (0-1 from the top-left).

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": "hedra-avatar",
    "input": {
      "audio": {},
      "prompt": "<prompt>",
      "resolution": "540p",
      "start_image": {},
      "aspect_ratio": "1:1"
    }
  }'