Speech to Text API

EU-hosted, privacy-first transcription with industry-specific models for unmatched accuracy

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Speech to Text API Features

Fast, accurate, multilingual speech-to-text API and speech summarization

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High-Quality Transcription

Get near-human accuracy with domain-tuned models. Our accurate speech recognition API handles noisy audio, speaker turns, and industry terminology

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Audio and Video Summarization

Auto-summarize recordings and highlight key moments. Useful for meeting notes, legal hearings, and call center transcripts

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Fast Integration

Developer-friendly endpoints make it simple to add voice to text capabilities to your app in minutes

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Multilingual Speech to Text API

Supports all major languages for use in speech-to-text transcription applications, making it ideal for global workflows

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All File Formats Accepted

Speech-to-text API supports almost all formats of audio and video files, plus SRT/VTT export for video transcription workflows

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Cheapest Speech to Text API

Accurate, multi-language speech recognition API at only 1.2¢ per minute. Flexible billing, enterprise plans, and free API keys to test

Save money and get unique speech recognition features

SpeechText.AI Watson Speech to Text Google Speech API Amazon Transcribe
Price per Hour $0.7-$1.0 $1.2 $1.44-$2.16 $1.44
Languages Supported Multiple Multiple Multiple Multiple
Punctuation/Casing
Keyword Highlights
Audio/Video Summarization
Integration Time Up to 1 hour 1-2 days 1-2 days 1-2 days
All File Formats Accepted
Process Data From Anywhere Binary Data Cloud Storage Bucket Amazon S3 bucket
Export as SRT/VTT
Free Technical Support

Quick and Simple Integration

Build accurate speech recognition applications in minutes. We take care of the complexity behind and wrap it in a few lines of code.

Documentation 

import requests
import json

secret_key = "SECRET_KEY"

# loads the audio into memory
with open("/path/to/your/file.mp3", mode="rb") as file:
  post_body = file.read()

API_URL = "https://api.speechtext.ai/recognize?"
header = {'Content-Type': "application/octet-stream"}

options = {
  "key" : secret_key,
  "language" : "en-US",
  "punctuation" : True,
  "format" : "mp3"
}
# send an audio file to SpeechText.AI
r = requests.post(API_URL, headers = header, params = options, data = post_body)
                      

# create transcription task
curl -H "Content-Type:application/octet-stream" --data-binary @/path/to/your/file.m4a "https://api.speechtext.ai/recognize?key=SECRET_KEY&language=en-US&punctuation=true&format=m4a"

# retrieve transcription results
curl -X GET "https://api.speechtext.ai/results?key=SECRET_KEY&task=TASK_ID&summary=true&summary_size=15&highlights=true&max_keywords=10"

# get captions
curl -X GET "https://api.speechtext.ai/results?key=SECRET_KEY&task=TASK_ID&output=srt&max_caption_words=10"

# process public URL
curl -X GET "https://api.speechtext.ai/recognize?key=SECRET_KEY&url=PUBLIC_URL&language=en-US&punctuation=true&format=mp3"
                    

<?php

$secret_key = "SECRET_KEY";

# loads the audio
$filesize = filesize('/path/to/your/file.m4a');
$fp = fopen('/path/to/your/file.m4a', 'rb');
// read the entire file into a binary string
$binary = fread($fp, $filesize);

# endpoint and options to start a transcription task
$endpoint = "https://api.speechtext.ai/recognize?key=".$secret_key."&language=en-US&punctuation=true&format=m4a";
$header = array('Content-type: application/octet-stream');

# curl connection initialization
$ch = curl_init();

# curl options
curl_setopt_array($ch, array(
    CURLOPT_URL => $endpoint,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_HEADER => false,
    CURLOPT_HTTPHEADER => $header,
    CURLOPT_POSTFIELDS => $binary,
    CURLOPT_FOLLOWLOCATION => true
));

# send an audio transcription request
$body = curl_exec($ch);

curl_close($ch);
                    

import java.net.*;
import java.io.*;
import java.util.concurrent.TimeUnit;
import org.json.*;


public class Transcriber {

    public static void main(String[] args) throws Exception {
        String secret_key = "SECRET_KEY";
        HttpURLConnection conn;
        
        // endpoint and options to start a transcription task
        URL endpoint = new URL("https://api.speechtext.ai/recognize?key=" + secret_key +"&language=en-US&punctuation=true&format=m4a");
        
        // loads the audio into memory
        File file = new File("/path/to/your/file.m4a");
        RandomAccessFile f = new RandomAccessFile(file, "r");
        long sz = f.length();
        byte[] post_body = new byte[(int) sz];
        f.readFully(post_body);
        f.close();
        
        // send an audio transcription request
        conn = (HttpURLConnection) endpoint.openConnection();
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/octet-stream");
        
        conn.setDoOutput(true);
        conn.connect();
        OutputStream os = conn.getOutputStream();
        os.write(post_body);
        os.flush();
        os.close();
        
    }
}

Pricing

Monthly subscription packages to suit any budget and use case

LITE

$49

  • 2.700 recognition minutes
  • $0.018 price per minute
  • Multiple languages
  • Speech Recognition
Subscribe

STARTUP

$99

  • 5.800 recognition minutes
  • $0.017 price per minute
  • Multiple languages
  • Speech Recognition
  • Summarization features
Subscribe
popular

PRODUCTION

$199

  • 13.250 recognition minutes
  • $0.015 price per minute
  • Multiple languages
  • Speech Recognition
  • Summarization features
Subscribe

ENTERPRISE

$399

  • 33.250 recognition minutes
  • $0.012 price per minute
  • Multiple languages
  • Speech Recognition
  • Summarization features
Subscribe

Frequently Asked Questions