How do I use Grok Voice TTS 1.0 from inside Iran?

Create a Hormouz account and generate an API key. Hormouz gives you a stable route to the model from inside Iran, with no foreign credit card or circumvention tooling needed.

How many languages and voices does Grok Voice TTS 1.0 have?

It supports more than 20 languages with automatic language detection and has five built-in voices: Eve, Ara, Rex, Sal and Leo.

SpaceXAI: Grok Voice TTS 1.0: audio model

Grok Voice TTS 1.0 is xAI's text-to-speech model, turning text into speech in 20+ languages with five built-in voices. Reachable from inside Iran through Hormouz.

Pricing:: $15/M characters
Type:: audio

Audio

Grok Voice TTS 1.0 is a text-to-speech model from xAI. It converts text into spoken audio across more than 20 languages with automatic language detection, and offers five built-in voices: Eve, Ara, Rex, Sal and Leo.

Inline speech tags control pauses, emphasis, pitch, speed and vocal style, with up to 15,000 characters per request. Hormouz serves Grok Voice TTS 1.0 on two endpoints: the OpenAI-compatible /v1/audio/speech, which returns the audio in the same response, and /v1/predictions for background jobs. Set voice to one of the model's own voices, for example "eve", and response_format to mp3 or pcm.

Billing is per character of input text; the current rate is in the price table on this page, and you pay only for what you use. Hormouz provides stable access to it from inside Iran, with no foreign credit card or circumvention tooling required.

Grok Voice TTS 1.0 is a text-to-speech model from SpaceXAI. It converts text into spoken audio across 20+ languages with automatic language detection, and offers five built-in voices (Eve, Ara,...

Quickstart

curl https://api.hormouz.net/v1/audio/speech \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"x-ai/grok-voice-tts-1.0","voice":"eve","input":"Hello from Hormouz.","response_format":"mp3"}' \
  --output speech.mp3

Specs

Vendor	xAI
Type	Audio
Context window	—
Pricing	$15/M characters
API	speech

Code example

cURL

curl https://api.hormouz.net/v1/audio/speech \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"x-ai/grok-voice-tts-1.0","voice":"eve","input":"Hello from Hormouz.","response_format":"mp3"}' \
  --output speech.mp3

Python

from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
with client.audio.speech.with_streaming_response.create(
    model="x-ai/grok-voice-tts-1.0",
    voice="eve",
    input="Hello from Hormouz.",
    response_format="mp3",
) as resp:
    resp.stream_to_file("speech.mp3")

JavaScript

import OpenAI from "openai";
import { writeFile } from "node:fs/promises";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const speech = await client.audio.speech.create({
  model: "x-ai/grok-voice-tts-1.0",
  voice: "eve",
  input: "Hello from Hormouz.",
  response_format: "mp3",
});
await writeFile("speech.mp3", Buffer.from(await speech.arrayBuffer()));

Buy the SpaceXAI: Grok Voice TTS 1.0 API, paid in rial

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One Hormouz key reaches SpaceXAI: Grok Voice TTS 1.0 and 600+ other models, and you pay only for what you use.
No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.

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FAQ

How much does Grok Voice TTS 1.0 cost?: Billing is per character of input text; the current rate is in the price table on this page, and you pay only for what you use.
How do I use Grok Voice TTS 1.0 from inside Iran?: Create a Hormouz account and generate an API key. Hormouz gives you a stable route to the model from inside Iran, with no foreign credit card or circumvention tooling needed.
How do I call Grok Voice TTS 1.0?: Hormouz serves Grok Voice TTS 1.0 on two endpoints: the OpenAI-compatible /v1/audio/speech, which returns the audio in the same response, and /v1/predictions for background jobs. Set voice to one of the model's own voices, for example "eve", and response_format to mp3 or pcm.
How many languages and voices does Grok Voice TTS 1.0 have?: It supports more than 20 languages with automatic language detection and has five built-in voices: Eve, Ara, Rex, Sal and Leo.

Updated 2026-10-13