---

name: elevenlabs-voice-design-v3 description: "Elevenlabs Voice Design V3. Design custom AI voices from text descriptions or reference audio using Elevenlabs V3. Triggers: elevenlabs, voice design, custom voice, voice creation, voice clone, tts" allowed-tools: Bash(curl *), WebFetch

Elevenlabs Voice Design V3

Design custom AI voices from text descriptions or reference audio using Elevenlabs Voice Design V3. Control voice characteristics with guidance scale, loudness, and prompt strength for precise voice creation.

Quick Start

Requires an each::labs API key. Get one at eachlabs.ai.

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "elevenlabs-voice-design-v3",
    "version": "0.0.1",
    "input": {
      "voice_description": "A warm, friendly male voice with a slight British accent, suitable for audiobook narration",
      "text": "The morning sun cast long shadows across the cobblestone street as the baker opened his shop for another day. The aroma of fresh bread filled the air.",
      "model_id": "eleven_ttv_v3",
      "guidance_scale": 5,
      "loudness": 0.5
    }
  }'

Parameters

Parameter	Type	Default	Description
auto_generate_text	boolean	false	Whether to automatically generate text suitable for the voice description
guidance_scale	integer	5	Controls how closely the AI follows the prompt. Lower = more freedom
loudness	number	0.5	Volume level of the generated voice (-1 quietest, 1 loudest)
model_id	string	eleven_ttv_v3	Voice model. enum: eleven_ttv_v3
prompt_strength	number	0	Balance of prompt versus reference audio (0 = prompt only)
reference_audio_url	string		URL of reference audio for voice cloning
seed	integer		Random seed for reproducible generation
text	string		Text to generate (100-1000 characters)
voice_description	string		Description of the desired voice characteristics

Examples

Voice from description:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "elevenlabs-voice-design-v3",
    "version": "0.0.1",
    "input": {
      "voice_description": "A deep, authoritative female voice with clear enunciation, suitable for documentary narration",
      "text": "In the depths of the Pacific Ocean, a world of wonder exists beyond the reach of sunlight. Here, strange creatures glow with their own ethereal light.",
      "model_id": "eleven_ttv_v3",
      "guidance_scale": 7,
      "loudness": 0.6
    }
  }'

Voice from reference audio with auto text:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "elevenlabs-voice-design-v3",
    "version": "0.0.1",
    "input": {
      "reference_audio_url": "https://example.com/voice-sample.mp3",
      "voice_description": "Match the warmth and tone of the reference audio",
      "auto_generate_text": true,
      "model_id": "eleven_ttv_v3",
      "prompt_strength": 0.5,
      "seed": 42
    }
  }'

Related Models

• elevenlabs-voice-design-v2 - Voice design with Elevenlabs V2
• elevenlabs-text-to-dialogue - Multi-speaker dialogue generation

Documentation

• each::labs Docs
• API Reference