YepAPI
DeepgramText to Speech/v1/media/queue

Deepgram Flux TTS API

Deepgram Flux TTS text to speech — natural, expressive English across 36 Flux voices, billed on input length.

Deepgram's text-to-speech model for natural, expressive English speech across the Flux voice catalogue of 36 named voices.

No credit card required. Takes 30 seconds.

Deepgram Flux TTS API pricing

Pay per request from your YepAPI balance — no subscription, no monthly minimum. Prices updated October 23, 2026.

BillingPrice
Rate$0.0949/1K chars
What it costsPer job
Short reply200 characters$0.019
Blog post narration10,000 characters (~1,600 words)$0.949
Audiobook chapter100,000 characters$9.49

2,400+

Developers

1.2M+

API calls served

100+

Endpoints

$0.01

Per call

Yep, that's it.

Playground coming soon — use the API endpoint directly with your API key.

Deepgram Flux TTS specs

ProviderDeepgram
Model IDdeepgram/flux-tts
Endpoint/v1/media/queue
TypeText to Speech
Output formatsmp3
Voices36 presets (default flux-alexis-en)

How to get a Deepgram Flux TTS API key

  1. 1

    Create a free account

    Sign up at yepapi.com with Google or email. It takes about 30 seconds and needs no card.

  2. 2

    Create an API key

    Open the dashboard, go to API Keys and create a key. Copy it — it starts with yep_sk_.

  3. 3

    Call Deepgram Flux TTS

    Send a request to /v1/media/queue with the x-api-key header and model "deepgram/flux-tts".

  4. 4

    Pay as you go

    Usage is billed per request from your balance. Top up any amount; there is no subscription.

Strengths

✓
36 Flux voices

A full English voice catalogue — enough to give each product, character, or brand its own speaker.

✓
Natural, expressive English

Suited to natural, expressive English speech synthesis.

✓
Stable voice identity

Canonical `flux-*-en` voice IDs mean the same speaker sounds the same on every request.

✓
From Deepgram

The same provider behind Aura-2, on the same media queue.

Quick start

Copy this snippet and start making calls with Deepgram Flux TTS.

// 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 package is out for delivery and should arrive between two and four this afternoon.",
    "options": {
      "voice": "flux-alexis-en"
    }
  }),
});
const { data } = await res.json();
const jobId = data.jobId;

// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${jobId}`, {
  headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status: "pending" | "processing" | "completed" | "failed"
// job.result: { text?, image?, audio?, video? }

Deepgram Flux TTS vs similar models

Every model below runs on the same API key — switch by changing the model ID.

ModelProviderPrice
Deepgram Flux TTSDeepgram$0.0949/1K chars
Deepgram Aura-2Deepgram$0.0633/1K chars
Kokoro 82Mhexgrad$0.0014/1K chars
Fish Audio Drama 3Fish Audio$0.0042/1K chars
HeyGen Voice TurboHeyGen$0.0084/1K chars
Sesame CSM 1BSesame$0.0148/1K chars
Voxtral TTS 3Mistral$0.0302/1K chars
MAI-Voice-2.1 FlashMicrosoft$0.0316/1K chars

Why use Deepgram Flux TTS through YepAPI?

✓One API key for all models — no separate accounts
✓No monthly minimums — pay per call
✓Switch models with one line of code
✓Simple REST API — works from any language
✓Unified billing across all providers
✓No rate limits for most use cases

Deepgram Flux TTS API — expressive English speech

Flux TTS is a text-to-speech model from Deepgram, suited for natural, expressive English speech synthesis across Deepgram's Flux voice catalogue of 36 named voices.

Voices are selected by their canonical Flux identifier, such as `flux-alexis-en`, so the speaker you pick in development is the speaker you ship. Billing is $0.0949 per 1,000 characters of input on the standard media queue.

Start generating in 30 seconds

$5 free credit on signup. No credit card required. Pay per call.

What developers say

“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”

Marcus T.

SEO Platform Founder

“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”

Priya S.

Full-Stack Developer

“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”

Jake R.

Indie Hacker

Frequently asked questions

Deepgram's text-to-speech model for natural, expressive English speech across the Flux voice catalogue of 36 named voices.

Deepgram Flux TTS costs $0.0949/1K chars through YepAPI, billed per request with no monthly fee. For example, a short reply (200 characters) costs about $0.019.

Sign up at yepapi.com (Google or email, about 30 seconds), open the dashboard and create an API key. The same key works for Deepgram Flux TTS and every other model — no separate Deepgram account or waitlist.

New YepAPI accounts in most countries get free signup credit, enough to test Deepgram Flux TTS without a card. After that you pay per request at the rates above — there is no subscription.

Use "deepgram/flux-tts" as the model on /v1/media/queue. The short alias "flux-tts" also works.

Ready to use Deepgram Flux TTS?

$5 free credit on signup. No credit card required. Pay per call.

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