AI Models
Deepgram Flux TTS
Deepgram's expressive English speech model with 36 Flux voices.
POST
$0.0949/1K chars/v1/media/queueOverview
Flux TTS is a text-to-speech model from Deepgram, suited for natural, expressive English speech synthesis across Deepgram's Flux voice catalogue. Pick a voice by its canonical Flux identifier.
| Property | Value |
|---|---|
| Model ID | deepgram/flux-tts |
| Alias | flux-tts |
| Upstream Model | deepgram/flux-tts |
| Category | Text to Speech |
| Languages | English |
| Output | mp3 (default) or pcm |
| Pricing | $0.0949 per 1,000 characters |
Usage
All media models use the async job queue. Submit a job, then poll for the result.
Step 1: Submit Job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
model: 'deepgram/flux-tts',
prompt: 'Your text to speak goes here.',
options: { voice: 'flux-alexis-en' },
}),
});
const { data } = await res.json();
// data.jobId — use this to poll for resultscurl -X POST https://api.yepapi.com/v1/media/queue \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "deepgram/flux-tts", "prompt": "Your text to speak goes here."}'Step 2: Poll for Result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${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.mp3', Buffer.from(job.result.audio.base64, 'base64'));Request Body
| Parameter | Type | Required | Description | Default |
|---|---|---|---|---|
model | string | Yes | deepgram/flux-tts | — |
prompt | string | Yes | The text to speak (max 50,000 bytes) | — |
options.voice | string | No | Voice identifier | flux-alexis-en |
options.outputFormat | string | No | mp3 (default) or pcm | mp3 |
options.speed | number | No | Playback speed multiplier. Honoured only by models that support it | 1.0 |
Voices
flux-alexis-en is used when options.voice is omitted. 36 voices available (10 of 36 shown):
flux-alexis-enflux-bree-enflux-brooke-enflux-bruce-enflux-cole-enflux-elise-enflux-hannah-enflux-marcus-enflux-priya-enflux-wade-en
Features
- 36 named Flux voices
- Natural, expressive English speech
- Consistent voice identity across requests
- Same media queue as Deepgram Aura-2
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.
Under the Hood
Powered by OpenRouter's unified speech API.