Features
Realtime streaming TTS with sub-200ms first-chunk latency
Instant voice cloning from 5–15 seconds audio
Text-based voice design via natural language description
Cross-lingual cloning: one voice speaks 100+ languages natively
Voice steering via bracketed instructions (tone, speed, volume, style)
Multilingual support: 100+ languages (TTS-2), 15 languages (TTS 1.5)
Multiple model tiers: Realtime TTS-2, TTS 1.5 Max, TTS 1.5 Mini
Word-level timestamp alignment
WebSocket support for realtime audio streaming
Unified API for TTS, STT, and LLM routing (220+ models)
Custom pronunciation dictionary
Speaking rate and temperature control
Multiple audio encodings: OGG_OPUS, WAV, PCM, etc.
TTS Playground for testing voices before API integration
Professional voice cloning (add-on for higher tiers)
Voice cloning from short audio samples
Text-to-speech in over 140 languages
Multilingual dubbing with lip sync
Custom voice creation and management
SSML support for fine-grained speech control
Audio file export (WAV, MP3, etc.)
Real-time streaming via API
Voice library with pre-built voices
Pronunciation dictionary customization
API for integration and automation
Batch processing for bulk conversion
Secure voice storage and management
