The world's most realistic & expressive voice AI
Voice AI models powered by emotional intelligence for creators, developers, and enterprises. Create audio books, podcasts, conversational agents and more.
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Products
Build with emotional intelligence models
Octave
Text-to-speech with emotional intelligence. Generate expressive, natural speech.
Empathic Voice Interface
Empathic voice interface for conversations. Build AI that listens and responds with care.
Expression Measurement
Analyze emotions from face and voice. Understand how people truly feel at scale.
Capabilities
Voice AI that handles the hard parts
Design voices with words
Describe the voice you want in natural language and our AI creates it. No voice actors needed—just your imagination.
“The speaker has an expressive, totally disgusted Valley Girl voice, with a heavy Californian accent, delivering each word with maximum disdain, like a lifestyle influencer reacting to a truly tragic fashion faux pas.”
“The speaker is a high-energy hype man with the contagious enthusiasm of a sports announcer, the rhythmic cadence of a seasoned rapper, and the irresistible charisma of a famous motivational speaker.”
“The speaker has a boisterous, gravelly voice, like a grizzled old sea captain with a thick stereotypical pirate accent, perfect for recounting tales of daring raids and buried treasure, and is intensely charismatic.”
Clone any voice instantly
Create a natural-sounding voice clone from just a few seconds of audio. Play the original, then hear the AI clone.
One voice, any language
Maintain consistent voice identity across 100+ languages. The same voice can speak English, Mandarin, Spanish, and more with native-level pronunciation.
Direct the performance
Add stage directions to guide delivery. Whisper, shout, pause for effect—your voice does exactly what you tell it to.
“With warm enthusiasm”
“Speak slowly and in a whisper”
“Speak with a sarcastic tone”
Use Cases
Generate life-like AI audio for your content creation needs
Audiobooks
Create high-quality multi-character audiobooks. Upload your PDF, select your characters, direct delivery and publish.
Video voiceovers
Choose the perfect voice for your video or clone your own voice. Then generate high-quality voiceovers for ads, shorts, or feature-length films.
Podcasts
Create multi-speaker podcasts that sound like real, studio quality dialogue. Select your voices, generate audio, and download.
Built on Science
Decades of research, one platform
#1
in naturalness and expressivity
600+
tagsof emotions and voice characteristics detected
250
msspeech LLM latency
For Developers
Build in minutes, scale forever
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Ready to build with empathy?
Start building AI that understands human emotion. Free to get started, with usage-based pricing as you scale.