Hume AI

Hume AI builds voice technology that hears feelings, not just words. Its flagship product, EVI, holds real-time voice conversations and reads your tone, pitch, and rhythm as you speak. It then answers back with matching emotion, so talks feel natural instead of robotic. Developers can also clone voices, design new ones from text, or measure emotion in speech, face, and text through an API. It supports 11+ languages and plugs into other language models. Hume aims to give software emotional intelligence.

Key Features

EVI Voice Conversations

A speech-to-speech model for real-time voice chats. It hears emotion in your voice and answers with matching tone and pace.

Octave TTS

A text-to-speech engine that infers delivery from the words themselves. You can direct it like an actor, for example 'whisper fearfully'.

Voice Cloning and Design

Clone a voice from a short recording or design a new one from a text description. Then tune pitch, nasality, and pace.

Expression Measurement

An API that measures emotion across voice, face, and text. Researchers and teams use it to study how people express feelings.

LLM and Tool Integration

EVI pairs with models like Claude and Gemini for reasoning. It can also call tools, such as a calendar, mid-conversation.

Frequently Asked Questions (FAQ)

What is Hume AI?

Hume AI makes voice technology with emotional intelligence. Its main product, EVI, holds voice conversations that understand and express emotion.

What is EVI?

EVI (Empathic Voice Interface) is Hume's speech-to-speech AI. You talk to it, and it answers in voice, reading your tone and responding with matching emotion.

Does Hume AI do text-to-speech?

Yes, through Octave. It reads your text and decides the delivery itself — or you give acting directions like 'sound more sarcastic'.

Can it measure emotion in audio?

Yes. The Expression Measurement API scores emotional expression in voice, facial expression, and text, for research and product analytics.

Who uses Hume AI?

Developers building voice assistants, companions, customer service bots, and games — anywhere a voice should sound human.

Which languages does it support?

EVI supports 11+ languages, so emotional voice apps can serve users in more than one country.

Conclusion

Hume AI is the voice platform for software that needs to feel human. EVI conversations, Octave speech, and emotion measurement cover the full stack. It is built for developers. If your app talks to people, this is how you give its voice a heartbeat. Try the playground on the site to hear what emotional voice AI sounds like.