https://unrealspeech.com/

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Slash Text-to-Speech Costs by up to 95%

Up to 20x cheaper than Eleven Labs and Play.ht.
Up to 4x cheaper than Amazon, Microsoft, and Google.

Get an API Key -

Live Demo

Beta

Compare against Google, Microsoft, and Amazon.

Click on a button to generate random text:
Non-Fiction
Fiction
News
Blog
Conversation
[                    ]
0/250
Voice
Format
Standard
Bitrate
192k
Normal
Speed
[1                   ]
1.0
Pitch
[1                   ]
Synthesize
Speed
0 s
Filesize
0 kb

Pricing that Scales with You

Start for free. Stay for volume discounts.

                   Free      Basic     Plus         Enterprise
Price              $0        $49       $499         Custom
                             a month   a month       
Characters         1M        3M        62M          300M+
                   one time  per month per month    per month
Cost               --         $16       $8           Volume Discounts
per 1M characters
Audio Duration     ~22 hours ~67 hours ~1,377 hours Custom
(estimated)
* 1 minute of audio = roughly 750 characters (~150 WPM)
Get Started for Free -
Need a custom solution? Contact us
"Unreal Speech saved us 75% on our text-to-speech cost. It sounds
better than Amazon Polly, and is much cheaper. We switched over at
high volumes, and often processing 10,000+ pages per hour. Unreal was
able to handle the volume, while delivering a high quality listening
experience."
[testimonia]
Derek Pankaew -- CEO, Listening.io
3B
Characters per month
0.3s
Latency
99.9%
Uptime

Code Samples

Get started quickly with our simple text-to-speech API.

Short
Long
Python
Copy

# Short endpoint: /stream
# - Up to 500 characters
# - Synchronous, instant response (0.3s+)
# - Streams back raw audio data

import requests

response = requests.post(
  'https://api.v6.unrealspeech.com/stream',
  headers = {
    'Authorization' : 'Bearer YOUR_API_KEY'
  },
  json = {
    'Text': '''<YOUR_TEXT>''', # Up to 500 characters
    'VoiceId': '<VOICE_ID>', # Dan, Will, Scarlett, Liv, Amy
    'Bitrate': '128k', # 320k, 256k, 192k, ...
    'Speed': '0', # -1.0 to 1.0
    'Pitch': '1', # -0.5 to 1.5
    'Codec': 'libmp3lame', # libmp3lame or pcm_mulaw
  }
)

with open('audio.mp3', 'wb') as f:
    f.write(response.content)

# Long endpoint: /synthesisTasks
# - Up to 500,000 characters
# - Asynchronous, takes ~1s per 800 chars
# - Returns a TaskId (use to check status)

import requests

response = requests.post(
  'https://api.v6.unrealspeech.com/synthesisTasks',
  headers = {
    'Authorization' : 'Bearer YOUR_API_KEY'
  },
  json = {
    'Text': '''<YOUR_TEXT>''', # Up to 500,000 characters
    'VoiceId': '<VOICE_ID>', # Dan, Will, Scarlett, Liv, Amy
    'Bitrate': '128k', # 320k, 256k, 192k, ...
    'Speed': '0', # -1.0 to 1.0
    'Pitch': '1', # -0.5 to 1.5
    'TimestampType': 'sentence', # word or sentence
   #'CallbackUrl': '<URL>', # pinged when ready
  }
)

print(response.json())

Sample Response

{
  'SynthesisTask': {
    'CreationTime': '2023-09-01T15:05:22.15Z',
    'OutputUri': 'https://unreal-tts-live-demo.s3-us-west-1.amazonaws.com/d8ef514d.mp3',
    'RequestCharacters': 14,
    'TaskId': 'd8ef514d',
    'TaskStatus': 'scheduled',
    'TimestampsUri': 'https://unreal-tts-live-demo.s3-us-west-1.amazonaws.com/d8ef514d.json',
    'VoiceId': 'Scarlett'
  }
}

Check Task Status
Make a GET request with TaskId in the URL to check the status.

import requests

response = requests.get(
  'https://api.v6.unrealspeech.com/synthesisTasks/d8ef514d',
  headers = {
    'Authorization' : 'Bearer YOUR_API_KEY'
  },
  json = {}
)

print(response.json())

// Short endpoint: /stream
// - Up to 500 characters
// - Synchronous, instant response (0.3s+)
// - Streams back raw audio data

const axios = require('axios');
const fs = require('fs');

const headers = {
    'Authorization': 'Bearer YOUR_API_KEY',
};

const data = {
    'Text': '<YOUR_TEXT>', // Up to 500 characters
    'VoiceId': '<VOICE_ID>', // Dan, Will, Scarlett, Liv, Amy
    'Bitrate': '128k', // 320k, 256k, 192k, ...
    'Speed': '0', // -1.0 to 1.0
    'Pitch': '1', // -0.5 to 1.5
    'Codec': 'libmp3lame', // libmp3lame or pcm_mulaw
};

axios({
    method: 'post',
    url: 'https://api.v6.unrealspeech.com/stream',
    headers: headers,
    data: data,
    responseType: 'stream'
}).then(function (response) {
    response.data.pipe(fs.createWriteStream('audio.mp3'))
});

// Long endpoint: /synthesisTasks
// - Up to 500,000 characters
// - Asynchronous, takes ~1s per 800 chars
// - Returns a TaskId (use to check status)

const axios = require('axios');

const headers = {
    'Authorization': 'Bearer YOUR_API_KEY',
};

const data = {
    'Text': '<YOUR_TEXT>', // Up to 500,000 characters
    'VoiceId': '<VOICE_ID>', // Dan, Will, Scarlett, Liv, Amy
    'Bitrate': '128k', // 320k, 256k, 192k, ...
    'Speed': '0', // -1.0 to 1.0
    'Pitch': '1', // -0.5 to 1.5
    'TimestampType': 'sentence', // word or sentence
  //'CallbackUrl': '<URL>', // pinged when ready
};

axios({
    method: 'post',
    url: 'https://api.v6.unrealspeech.com/synthesisTasks',
    headers: headers,
    data: data,
}).then(function (response) {
    console.log(JSON.stringify(response.data));
});

Sample Response

{
  'SynthesisTask': {
    'CreationTime': '2023-09-01T15:05:22.15Z',
    'OutputUri': 'https://unreal-tts-live-demo.s3-us-west-1.amazonaws.com/d8ef514d.mp3',
    'RequestCharacters': 14,
    'TaskId': 'd8ef514d',
    'TaskStatus': 'scheduled',
    'TimestampsUri': 'https://unreal-tts-live-demo.s3-us-west-1.amazonaws.com/d8ef514d.json',
    'VoiceId': 'Scarlett'
  }
}

Check Task Status
Make a GET request with TaskId in the URL to check the status.

const axios = require('axios');

const headers = {
    'Authorization': 'Bearer YOUR_API_KEY',
};

axios({
    method: 'get',
    url: 'https://api.v6.unrealspeech.com/synthesisTasks/d8ef514d',
    headers: headers,
}).then(function (response) {
    console.log(JSON.stringify(response.data));
});

# Short endpoint: /stream
# - Up to 500 characters
# - Synchronous, instant response (0.3s+)
# - Streams back raw audio data

curl -X POST "https://api.v6.unrealspeech.com/stream" -H "Content-Type: application/json" -H "Authorization: Bearer YOUR_API_KEY" --data '{"Text": "<YOUR_TEXT>", "VoiceId": "<VOICE_ID>", "Bitrate": "128k", "Speed": "0", "Pitch": "1", "Codec": "libmp3lame"}' --output audio.mp3

# Long endpoint: /synthesisTasks
# - Up to 500,000 characters
# - Asynchronous, takes ~1s per 800 chars
# - Returns a TaskId (use to check status)

curl -X POST "https://api.v6.unrealspeech.com/synthesisTasks" -H "Content-Type: application/json" -H "Authorization: Bearer YOUR_API_KEY" --data '{"Text": "<YOUR_TEXT>", "VoiceId": "<VOICE_ID>", "Bitrate": "128k", "Speed": "0", "Pitch": "1", "TimestampType": "sentence"}'

Sample Response

{
  'SynthesisTask': {
    'CreationTime': '2023-09-01T15:05:22.15Z',
    'OutputUri': 'https://unreal-tts-live-demo.s3-us-west-1.amazonaws.com/d8ef514d.mp3',
    'RequestCharacters': 14,
    'TaskId': 'd8ef514d',
    'TaskStatus': 'scheduled',
    'TimestampsUri': 'https://unreal-tts-live-demo.s3-us-west-1.amazonaws.com/d8ef514d.json',
    'VoiceId': 'Scarlett'
  }
}

Check Task Status
Make a GET request with TaskId in the URL to check the status.

curl -X GET "https://api.v6.unrealspeech.com/synthesisTasks/d8ef514d" -H "Content-Type: application/json" -H "Authorization: Bearer YOUR_API_KEY"

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