AI Voice

ai-voiceTurn any text into natural-sounding speech. Pick a voice, optionally steer the delivery style, and download the finished audio file.

Per 1K characters

$0.0194

Uptime · 24h

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No traffic yet

Details

Type: Text to speech
Input: text
Output: audio
Voices: alloy, echo, fable, onyx, nova, shimmer, sage, ballad
Max characters: 4,096

Supported parameters

inputvoiceresponse_formatspeedinstructions

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": "ai-voice", "voice": "alloy", "input": "Hello from UltraGPT!" }' \
  --output hello.mp3