UltraOpen console
Voice agent infrastructure

UltraVLGEnglish in. Hindi out.

Variable-conditioned Language Generation.

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Recorded model samples
Speaker
EN EnglishInput

I can request a fee reversal, but I cannot approve it myself.

PoliteEveryday Hinglish
हि Hindi

मैं फीस रिवर्सल की रिक्वेस्ट कर सकती हूँ, पर खुद अप्रूव नहीं कर सकती।

DevanagariUltraVLG
KavyaUltraTTS · Hindi
 
↓
VLG + TTS

One request.
Ready to speak.

Add vlg to your speech request.

EnglishYour LLMUltraVLGHindi textUltraTTSAudio
API documentation
POST /tts/bytes
curl https://inference.ultrainc.co/tts/bytes \
  -H "X-API-Key: $ULTRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "transcript": "I can request a fee reversal, but I cannot approve it myself.",
  "voice": {
    "mode": "id",
    "id": "default"
  },
  "vlg": {
    "speaker_gender": "female",
    "listener_gender": "unknown",
    "formality": "polite",
    "language_style": "everyday_hinglish"
  }
}' --output speech.pcm