[ heygen ]

HeyGen Voice

HeyGen Voice from Heygen: a text-to-speech model. Every model below its source price, and the cheapest provider wins every request. Priced in USD per 1M UTF-8 bytes, paid in USDF, with no subscription and no minimum.

Get an API keyTry in Playground
heygenheygen-voice-1AvailablespeechMax input: 4,096 characters

Input

$15.00

per 1M UTF-8 bytes

Max input

4,096

characters

Models with a zero-retention route use it by default. A model marked 'provider may keep data' is served by a provider that may keep request data; choosing it is your choice.

Model ID
heygen-voice-1
Modality
speech
Unit
USD per 1M UTF-8 bytes
Endpoints
/v1/audio/speech
Below source price
4.76%

Data policy

Retains dataNo training

Make your first request

Responses include a receipt with the exact cost. No key yet? Create one.

Without an account, send the same request to /x402/v1/audio/speech with no credentials and the gateway answers 402 with a quote. Pay per request.

curl https://api.usdf.fi/v1/audio/speech \
  -H "Authorization: Bearer $USDF_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "heygen-voice-1", "input": "Hello", "response_format": "mp3"}' \
  --output speech.mp3  # the response body is audio bytes