# Grok Voice TTS 1.0

> Grok Voice TTS 1.0 is a text-to-speech model from xAI. It converts text into spoken audio across 20+ languages with automatic language detection, and offers five built-in voices (Eve, Ara, Rex, Sal, Leo) covering a range of tones.

**ID**: `x-ai/grok-voice-tts-1.0`  
**Creator**: xAI  
**Category**: audio  
**Context**: Not published  
**Status**: Disabled — no longer routable or listed; kept for history/usage reference.  
**Reason**: Its BYOK aggregator upstream no longer lists this model id (verify:upstreams MISSING 2026-07-16), and that was its only upstream. See #1283.  
**Pricing**: BYOK — billed by your provider  
**Released**: 2026-06-05  
**Web page**: https://anyrouter.dev/model/x-ai/grok-voice-tts-1.0

**Input modalities**: text  
**Output modalities**: audio  

**Capabilities**: text-to-speech

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/audio/speech`

```bash
curl https://anyrouter.dev/api/v1/audio/speech \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  --output speech.mp3 \
  -d '{
  "model": "x-ai/grok-voice-tts-1.0",
  "input": "Hello! This is a text-to-speech test.",
  "voice": "<voice id>"
}'
```

`voice` is required and has no default.

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| openrouter-byok | BYOK — billed by your provider | — |

BYOK routes are billed by your own provider key — AnyRouter charges $0. Rates marked (list) are the provider's published list price.

## Source

- Upstream docs: https://docs.x.ai/grok-voice-tts-1.0