aura 2

This documentation is valid for the following list of our models

#g1_aura-2-amalthea-en
#g1_aura-2-andromeda-en
#g1_aura-2-apollo-en
#g1_aura-2-arcas-en
#g1_aura-2-aries-en
#g1_aura-2-asteria-en
#g1_aura-2-athena-en
#g1_aura-2-atlas-en
#g1_aura-2-aurora-en
#g1_aura-2-callista-en
#g1_aura-2-cora-en
#g1_aura-2-cordelia-en
#g1_aura-2-delia-en
#g1_aura-2-draco-en
#g1_aura-2-electra-en
#g1_aura-2-harmonia-en
#g1_aura-2-helena-en
#g1_aura-2-hera-en
#g1_aura-2-hermes-en
#g1_aura-2-hyperion-en
#g1_aura-2-iris-en
#g1_aura-2-janus-en
#g1_aura-2-juno-en
#g1_aura-2-jupiter-en
#g1_aura-2-luna-en
#g1_aura-2-mars-en
#g1_aura-2-minerva-en
#g1_aura-2-neptune-en
#g1_aura-2-odysseus-en
#g1_aura-2-ophelia-en
#g1_aura-2-orion-en
#g1_aura-2-orpheus-en
#g1_aura-2-pandora-en
#g1_aura-2-phoebe-en
#g1_aura-2-pluto-en
#g1_aura-2-saturn-en
#g1_aura-2-selene-en
#g1_aura-2-thalia-en
#g1_aura-2-theia-en
#g1_aura-2-vesta-en
#g1_aura-2-zeus-en
#g1_aura-2-celeste-es
#g1_aura-2-estrella-es
#g1_aura-2-nestor-es

Model Overview

Aura 2 produces natural, human-like speech with accurate domain-specific pronunciation — covering drug names, legal terms, alphanumeric strings, and structured inputs such as dates, times, and currency. It also maintains sub-200 ms TTFB latency and offers cost-efficient scalability.

Setup your API Key

If you don’t have an API key for the AI/ML API yet, feel free to use our Quickstart guide.

Code Example

import os
import requests

def main():
    url = "https://api.aimlapi.com/v1/tts"
    headers = {
        # Insert your AI/ML API key instead of <YOUR_AIMLAPI_KEY>:
        "Authorization": "Bearer <YOUR_AIMLAPI_KEY>",
    }
    payload = {
        "model": "#g1_aura-2-helena-en",
        "text": '''
        Cities of the future promise to radically transform how people live, work, and move. 
        Instead of sprawling layouts, we’ll see vertical structures that integrate residential, work, and public spaces into single, self-sustaining ecosystems. 
        Architecture will adapt to climate conditions, and buildings will be energy-efficient—generating power through solar panels, wind turbines, and even foot traffic.
    '''
    }
    response = requests.post(url, headers=headers, json=payload, stream=True)
    
    # result = os.path.join(os.path.dirname(__file__), "audio.wav")  # if you run this code as a .py file
    
    result = "audio.wav"  # if you run this code in Jupyter Notebook

    with open(result, "wb") as write_stream:
        for chunk in response.iter_content(chunk_size=8192):
            if chunk:
                write_stream.write(chunk)

    print("Audio saved to:", result)


main()

const https = require("https");
const fs = require("fs");

// Insert your AI/ML API key instead of <YOUR_AIMLAPI_KEY>:
const apiKey = "<YOUR_AIMLAPI_KEY>";

const data = JSON.stringify({
  model: "#g1_aura-2-helena-en",
  text: `
Cities of the future promise to radically transform how people live, work, and move. 
Instead of sprawling layouts, we’ll see vertical structures that integrate residential, work, and public spaces into single, self-sustaining ecosystems. 
Architecture will adapt to climate conditions, and buildings will be energy-efficient—generating power through solar panels, wind turbines, and even foot traffic.
  `
});

const options = {
  hostname: "api.aimlapi.com",
  path: "/v1/tts",
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
    "Content-Length": Buffer.byteLength(data),
  }
};

const req = https.request(options, (res) => {
  if (res.statusCode >= 400) {
    let error = "";
    res.on("data", chunk => error += chunk);
    res.on("end", () => {
      console.error(`Error ${res.statusCode}:`, error);
    });
    return;
  }

  const file = fs.createWriteStream("audio.wav");
  res.pipe(file);

  file.on("finish", () => {
    file.close();
    console.log("Audio saved to audio.wav");
  });
});

req.on("error", (e) => {
  console.error("Request error:", e);
});

req.write(data);
req.end();

Response

Audio saved to: audio.wav

The generated audio: WAV.

API Schema

post

Authorizations

Body

modelundefined · enumRequiredPossible values:

textstringRequired

The text content to be converted to speech.

containerstringOptional

The file format wrapper for the output audio. The available options depend on the encoding type.

encodingstring · enumOptional

Specifies the expected encoding of your audio output

Default: linear16Possible values:

sample_ratestringOptional

Audio sample rate in Hz.

Responses

201Success

application/json

post

/v1/tts

POST /v1/tts HTTP/1.1
Host: api.aimlapi.com
Authorization: Bearer YOUR_SECRET_TOKEN
Content-Type: application/json
Accept: */*
Content-Length: 110

{
  "model": "#g1_aura-2-amalthea-en",
  "text": "text",
  "container": "text",
  "encoding": "linear16",
  "sample_rate": "text"
}

201Success

{
  "metadata": {
    "transaction_key": "text",
    "request_id": "text",
    "sha256": "text",
    "created": "2025-11-02T17:06:33.714Z",
    "duration": 1,
    "channels": 1,
    "models": [
      "text"
    ],
    "model_info": {
      "ANY_ADDITIONAL_PROPERTY": {
        "name": "text",
        "version": "text",
        "arch": "text"
      }
    }
  }
}

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