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Custom Voices let you create a reusable synthetic voice that’s saved to your account. Once created, you can use this voice repeatedly — both in the dashboard and via the API — making it perfect for branding and consistent audio experiences.
Custom voices are saved to your account with a unique Voice ID for unlimited reuse. For one-time voice cloning, see Instant Voice Cloning.

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Custom Voices vs Instant Cloning

FeatureCustom VoicesInstant Cloning
Voice Saved?✅ Yes❌ No
Reusable?✅ Unlimited uses❌ Single use
Voice ID Assigned?✅ Yes❌ No
API Access✅ Yes❌ Dashboard only
Best ForBranding, ongoing useQuick tests, one-off projects

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How to Create a Custom Voice

1

Navigate to the Dashboard

Log in to your account and go to the Custom Voices page.
2

Upload Audio

Provide a high-quality audio sample of the voice you want to use as a base.
3

Define Your Voice

Assign a Name and Gender to your new voice for easy identification.
4

Get Your Voice ID

Once processed, your new Custom Voice will be added to your library and assigned a unique Voice ID.
Creating custom voices is only available via the Dashboard as of now. We are working to add the API endpoint for it.

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Using Your Custom Voice on the Dashboard

To use your custom voice via the Web Dashboard:
  1. Head to the Text to Speech Page
  2. Select Advance Model
  3. In the Voices menu, find your Custom Voice under “My Voices”
Custom voices are only supported in the Advance Model.

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Using Your Custom Voice in the API

Your Custom Voice can be used programmatically via the API by referencing its unique Voice ID.

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Find Your Voice ID

Locate your voice on the dashboard’s Custom Voices section and copy its Voice ID (e.g., custom_voice_123).

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Make the API Request

Set the voice parameter to your Voice ID and the model parameter to "advance". 
import audixa

audixa.set_api_key("YOUR_API_KEY")

audio_url = audixa.tts_and_wait(
    "This audio was generated with our unique and professional brand voice.",
    voice="custom_voice_456",
    model="advance",
    speed=1.0,
)

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Security and Access

Your Custom Voices are exclusive to your account.

Exclusive Access

Only the account that created a Custom Voice can use its Voice ID.

Protected Assets

If another user attempts to use your Custom Voice ID, the API returns a 400 Bad Request error.
Error on Misuse: 
{
  "detail": "Invalid voice ID"
}

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Billing

Custom Voices use the Advance Model. All audio generated is charged at the Advance model rate.
ModelCredit Cost
Base1 credit per token
Advance (Custom Voices)4 credits per token

Understanding Credits

See our detailed guide on credit calculation and billing.

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Managing Your Voices

You have full control over your created voices. Management tasks, such as deleting a Custom Voice, can only be performed through the Custom Voices section of your dashboard.
Changing of the voice or metadata for a custom voice after creation is not allowed.