Features
Real-time text-to-speech API
Emotion control via tags (angry, sad, excited, etc.)
Special effects tags (laughing, sighing, crying, etc.)
Voice cloning from 10–15 seconds audio
Multilingual support (30+ languages)
Fine-grained word-level control (S2.1 Pro)
Studio-quality voiceovers
Audiobook generation (ACX/Audible specs)
Character voice design and cloning
Conversational chatbot voice integration
Speech-to-text with speaker diarization
AI Voice Design from text prompt
Professional voice cloning (verified clone)
Podcast transcription tool
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)
