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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A text-to-speech system that understands what it's saying

Octave (Omni-capable text and voice engine) isn't a traditional TTS model. It’s a voice-based LLM. That means it understands what words mean in context, so it can predict emotions, cadence, and more.

For creators

Generate life-like AI audio for your content creation needs

'TwasthenightbeforeChristmas,whenallthroughthehouse.Notacreaturewasstirring,notevenamouse.Thestockingswerehungbythechimneywithcare.InhopesthatStNicholassoonwouldbethere.

I'm,like,stunned.It'stotallyinsanetome,honestly.Like,can'ttheyjustwaitoneday?

Sohe,uh,hegoesdownthiscrazyrathole.Imean,pictureit.It's1954.He'sstandingbarefootonthebackofallamaandheyellsatthetopofhislungs-

Audiobooks

Create high-quality mutli-character audiobooks. Upload your PDF, select your characters, direct delivery and publish.

'TwasthenightbeforeChristmas,whenallthroughthehouse.Notacreaturewasstirring,notevenamouse.Thestockingswerehungbythechimneywithcare.InhopesthatStNicholassoonwouldbethere.

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.

I'm,like,stunned.It'stotallyinsanetome,honestly.Like,can'ttheyjustwaitoneday?

Podcasts

Create multi-speaker podcasts that sound like real, studio quality dialogue. Select your voices, generate audio, and download.

Sohe,uh,hegoesdownthiscrazyrathole.Imean,pictureit.It's1954.He'sstandingbarefootonthebackofallamaandheyellsatthetopofhislungs-

For developers

Build the most realistic, high quality audio models into your products with our APIs and SDKs

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Text to speech API

Octave (Omni Capable Text and Voice Engine) is a new kind of voice AI that understands what words mean in context, unlocking humanlike expressiveness and nuance for any voice. With <200ms latency, Octave 2 is available in 11+ languages including:

English

Japanese

Korean

Spanish

French

Portuguese

Italian

German

Russian

Hindi

Arabic

Speech to speech API

EVI (Empathic Voice Interface) is a speech-to-speech foundation model. The same intelligence understands and generates language and speech, enabling it to sound human. You can seamlessly merge EVI's low-latency responses with any language model, including:

Hume

Claude Sonnet 4.5

Grok 4 Fast

GPT 5

+20 more

Tools for Every Platform

Easy to get started with our cross-language development suite:

Python SDK

Typescript SDK

Swift SDK

React SDK

C# SDK

For enterprise

Deliver new experiences and save costs for your enterprise

Niantic Spatial x Hume AI: Creating Interactive & Spatially Aware AI Companions

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AI characters

Power your game character or AI companion with Hume's text to speech or speech to speech API. Deliver expressive and reliable interactions at a cost that makes sense for your application.

Niantic Spatial x Hume AI: Creating Interactive & Spatially Aware AI Companions

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Content creation tools

Integrate the most realistic AI voices into your media creation platform. Let your users access hundreds of high-quality voices instantly in over 11 languages for their audiobooks, podcasts, or videos.