Features
50+ languages and dialects
Hundreds of natural voices
Adjustable speaking rate and pitch
Pause and emphasis control
Voice style selection (e.g., happy, sad)
Audio file download (MP3, WAV)
History of generated files
Text input with character limit display
Text-to-speech (Octave 2) with emotional control across 48 emotions and 600+ voice descriptors
Speech-to-speech (EVI 4 mini) with interruptibility, back-channeling, and configurable turn detection
Real-time configurable turn detection (end_of_turn_silence_ms, speech_detection_threshold)
Real-time configurable interruption settings (min_interruption_ms)
Zero prompt expansion for external LLMs (GPT-5.2, Claude Opus 4.6, etc.)
Experimental temperature parameter for TTS sampling variation
Voice cloning (unlimited create/use, API access on Business tier)
Voice conversion with commercial license on Creator+
50+ languages, 48+ emotions, 600+ voice descriptors
Human Feedback API with science-backed survey templates
Curated speech datasets for training (multilingual, emotional, domain-specific)
SOC 2 Type II, GDPR, HIPAA compliance (Business and Enterprise tiers)
RESTful API for evaluation studies (coming soon)
Open-source models (TADA) available separately
Concurrent connections for external LLMs (up to 30 on Business)
