How do I use MAI-Voice-2.1 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.

Should I use MAI-Voice-2.1 or MAI-Voice-2.1-Flash?

Use MAI-Voice-2.1 for the best voice quality in long-form content; use MAI-Voice-2.1-Flash when the reply has to be fast, such as in voice agents.

Microsoft AI: MAI-Voice-2.1: audio model

MAI-Voice-2.1 is Microsoft AI's highest-fidelity text-to-speech model, with studio-grade speech in 23 languages for audiobooks, podcasts and narration. Reachable from inside Iran through Hormouz.

Pricing:: $22/M characters
Type:: audio

Audio

MAI-Voice-2.1 is Microsoft AI's highest-fidelity, most expressive text-to-speech model. It produces studio-grade speech across 23 languages, with detailed prosody and a consistent speaker over long content.

A voice is named with its locale and the model, and the locale sets the language. It favours naturalness over speed, which makes it the choice for audiobooks, podcasts, lectures and brand audio rather than live conversation. Hormouz serves MAI-Voice-2.1 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 "en-US-Harper:MAI-Voice-2.1", 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.

MAI-Voice-2.1 is Microsoft AI's highest-fidelity, most expressive text-to-speech model. It produces natural, studio-grade speech across 23 languages, with detailed prosody, nuanced expressiveness, and speaker consistency over long-form content. It is...

Quickstart

curl https://api.hormouz.net/v1/audio/speech \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"microsoft/mai-voice-2.1","voice":"cs-CZ-Grant:MAI-Voice-2.1","input":"Hello from Hormouz.","response_format":"mp3"}' \
  --output speech.mp3

Specs

Vendor	Microsoft
Type	Audio
Context window	—
Pricing	$22/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":"microsoft/mai-voice-2.1","voice":"cs-CZ-Grant:MAI-Voice-2.1","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="microsoft/mai-voice-2.1",
    voice="cs-CZ-Grant:MAI-Voice-2.1",
    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: "microsoft/mai-voice-2.1",
  voice: "cs-CZ-Grant:MAI-Voice-2.1",
  input: "Hello from Hormouz.",
  response_format: "mp3",
});
await writeFile("speech.mp3", Buffer.from(await speech.arrayBuffer()));

Buy the Microsoft AI: MAI-Voice-2.1 API, paid in rial

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FAQ

How much does MAI-Voice-2.1 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 MAI-Voice-2.1 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 MAI-Voice-2.1?: Hormouz serves MAI-Voice-2.1 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 "en-US-Harper:MAI-Voice-2.1", and response_format to mp3 or pcm.
Should I use MAI-Voice-2.1 or MAI-Voice-2.1-Flash?: Use MAI-Voice-2.1 for the best voice quality in long-form content; use MAI-Voice-2.1-Flash when the reply has to be fast, such as in voice agents.

Updated 2026-10-13