HeyGen Voice Turbo
The lower-latency version of HeyGen Voice — same 10 voices, raw 44.1 kHz PCM output.
/v1/media/queueOverview
HeyGen Voice Turbo is a lower-latency version of HeyGen Voice, HeyGen's text-to-speech model. It has the same 10 built-in voices and returns raw PCM at 44.1 kHz, at about a quarter of HeyGen Voice's per-character price.
| Property | Value |
|---|---|
| Model ID | heygen/heygen-voice-1-turbo |
| Alias | heygen-voice-turbo |
| Upstream Model | heygen/heygen-voice-1-turbo |
| Category | Text to Speech |
| Output | pcm only |
| Pricing | $0.0084 per 1,000 characters |
Usage
All media models use the async job queue. Submit a job, then poll for the result.
Step 1: Submit Job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
model: 'heygen/heygen-voice-1-turbo',
prompt: 'Your text to speak goes here.',
options: { voice: 'nadine' },
}),
});
const { data } = await res.json();
// data.jobId — use this to poll for resultscurl -X POST https://api.yepapi.com/v1/media/queue \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "heygen/heygen-voice-1-turbo", "prompt": "Your text to speak goes here."}'Step 2: Poll for Result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${data.jobId}`, {
headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status — "pending" | "processing" | "completed" | "failed"
// job.result.audio — { mimeType, base64 } when completedcurl https://api.yepapi.com/v1/media/status/JOB_ID \
-H "x-api-key: YOUR_API_KEY"Write the audio to a file:
import { writeFileSync } from 'node:fs';
writeFileSync('speech.pcm', Buffer.from(job.result.audio.base64, 'base64'));Request Body
| Parameter | Type | Required | Description | Default |
|---|---|---|---|---|
model | string | Yes | heygen/heygen-voice-1-turbo | — |
prompt | string | Yes | The text to speak (max 50,000 bytes) | — |
options.voice | string | No | Voice identifier | nadine |
options.outputFormat | string | No | pcm only | pcm |
options.speed | number | No | Playback speed multiplier. Honoured only by models that support it | 1.0 |
Voices
nadine is used when options.voice is omitted. 10 voices available:
nadinetabithabramgarethnoellemeredithsabrinalucianwestonvincent
Features
- Lower latency than HeyGen Voice
- Same 10 built-in voices
- 44.1 kHz PCM output
- Returns raw PCM only (see the note below)
This model returns raw PCM only — requesting outputFormat: "mp3" is rejected at submit
time. job.result.audio.mimeType carries the sample rate, e.g. audio/pcm;rate=44100;channels=1,
and the audio is headerless: wrap it in a WAV container or feed it to an audio pipeline directly.
Billing
Speech is billed on the length of the input text, in UTF-8 bytes — for English text one byte is one character. The cost is known before synthesis starts, so the balance check at submit time quotes the exact final charge. Jobs have a $0.01 minimum.
Powered by OpenRouter's unified speech API.