Features
Text-to-speech conversion
Web link to audio conversion
Nearly a dozen high-quality synthetic voices
Cross-platform desktop and mobile support
Simple and intuitive interface
Privacy-first data handling with minimal data retention
Free Starter tier with full voice access
Content Creator plan via in-app purchase
Enterprise plan with custom usage and support
Regular addition of new voices
Studio-grade voice quality
Voiceover for marketing videos
Voiceover for e-learning content
On-the-go listening across devices
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)
