falText to videoComing soon

fal-ai/heygen/avatar4/digital-twin

fal-ai/heygen/avatar4/digital-twin is a text to video tool from fal 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

FieldKindDefaultDescription
character requiredJSON—Character configuration for the video
voice requiredJSON—Voice configuration for the character
audio_urlURL or file—URL of an audio file for the avatar to lip-sync to. When provided, the avatar uses this audio instead of text-to-speech.
resolutionone of
360p, 480p, 540p, 720p, 1080p
720pVideo resolution preset. Options: 360p, 480p, 540p, 720p, 1080p
aspect_ratioone of
16:9, 9:16, 4:5, 5:4, 1:1, auto
16:9Aspect ratio of the output video. Supported values: '16:9', '9:16', '4:5', '5:4', '1:1', and 'auto'. 'auto' preserves the source aspect ratio when HeyGen can read it, falling back to '16:9' otherwise.

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": "fal",
    "model": "fal-ai/heygen/avatar4/digital-twin",
    "input": {
      "character": {},
      "voice": {}
    }
  }'