Grok Voice

grok-voicexAI's Grok voice model with automatic language detection across 20+ languages - the same voice adapts fluently between English, Spanish, Russian, and more.

Per 1K characters

$0.0150

Uptime · 24h

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Details

Type: Text to speech
Input: text
Output: audio
Voices: eve, ara, rex, sal, leo
Max characters: 15,000

Supported parameters

inputvoiceresponse_format

Last 24 hours

Requests per hour; red = provider errors.

Avg latency: —
Avg first token: —
Throughput: —

Use it

curl https://api.ultragpt.pro/v1/audio/speech \
  -H "Authorization: Bearer $ULTRAGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "grok-voice", "voice": "eve", "input": "Hello from UltraGPT!" }' \
  --output hello.mp3