> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Design a Voice from a Prompt

> Use AI to generate voices from natural language descriptions — understand the concepts, then create one via the portal or API.

## What voice design does

Voice design generates a synthetic voice from a natural language description. You describe what you want — age, tone, accent, pacing — and the AI creates audio samples that match.

This is **not** voice cloning. There's no source audio. The voice is generated from scratch based on your text prompt.

## The two-step flow: design → clone

The API has two separate resources:

1. **Voice Design** — an intermediate artifact. Think of it as a draft. You can iterate on it (up to 50 versions per design). It is NOT usable for TTS directly.
2. **Voice Clone** — a production-ready voice. Created from a design. This is what you pass to AI Assistants, Call Control, and the TTS API.

```
POST /v2/voice_designs → generates a sample → returns design id + version
POST /v2/voice_clones  → saves the design as a usable voice → returns voice clone id
```

The portal hides this two-step flow behind a single "Save This Voice" button. If you're using the API directly, you need both steps.