Text-to-Speech Generator (OpenAI voice generator) 🎤🔊

Free-plan sample: Apify Free accounts can generate speech from up to 500 text characters per run. Longer inputs end with a limit message before generation; text is not silently truncated. Your own OpenAI key is still required. Upgrade your Apify plan for larger runs. Normal Actor charges apply. The sample resets each run; it is not a daily or monthly quota.

Convert text to speech using OpenAI's text-to-speech API. Simple, fast, and user-friendly.

How it works

1. Provide your text and OpenAI API key
2. Choose a voice and settings
3. Get back an audio file stored in the key-value store

Voices

OpenAI provides 6 voices. All of them are optimized for English:

• alloy - Balanced, versatile (default)
• echo - Warm, upbeat
• fable - Clear, expressive
• onyx - Deep, authoritative
• nova - Smooth, confident
• shimmer - Soft, whispery

Listen to voice samples at OpenAI's documentation.

Input

Field	Required	Description
text	✅	Text to convert (max 4,096 characters)
openai_api_key	✅	Your OpenAI API key
voice	❌	Voice to use (default: alloy)
model	❌	tts-1 (faster) or tts-1-hd (higher quality)
response_format	❌	mp3, opus, aac, or flac (default: mp3)
speed	❌	Speech speed 0.25-4.0 (default: 1.0)

Example input:

{
  "text": "Hello! Welcome to our text-to-speech service.",
  "openai_api_key": "sk-your-api-key-here",
  "voice": "nova",
  "model": "tts-1-hd"
}

Output

The actor outputs:

• Dataset: Result info with audio file name and status
• Key-value store: The actual audio file you can download

Dataset output:

{
  "text": "Hello! Welcome to our text-to-speech service.",
  "voice": "nova", 
  "audio_file": "speech.mp3",
  "status": "success"
}

Download your audio

The audio file is saved in the key-value store. You can:

1. Download it from the Apify Console (Storage → Key-value stores)
2. Access it via API: https://api.apify.com/v2/key-value-stores/{STORE_ID}/records/speech.mp3

Usage

Apify Console

1. Find this actor in the Apify Store
2. Click "Try for free"
3. Enter your text and OpenAI API key
4. Run and download your audio file

API

curl -X POST "https://api.apify.com/v2/acts/hsmtk1ZP05MLGe7De/runs" \
  -H "Authorization: Bearer YOUR_APIFY_TOKEN" \
  -d '{"text": "Hello world", "openai_api_key": "sk-..."}'

Pricing

• OpenAI: ~$15 per 1M characters (tts-1) or $30 per 1M characters (tts-1-hd)

Limitations

• Max 4,096 characters per text
• Voices optimized for English
• Requires OpenAI API key

🔗 Related tools

• Audio and Video Transcriber: transcribe any audio or video file URL to text with OpenAI GPT-4o transcribe.
• YouTube Transcriber (GPT-4o): turn YouTube videos into accurate transcripts for about $0.006 per minute.

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Transform your text into speech in seconds! 🎵