Hume AI

About

Hume AI builds AI that understands and responds to human emotions. Their flagship products include Octave, a frontier text-to-speech model that lets you design voices with natural language descriptions or clone any voice from seconds of audio, and EVI (Empathic Voice Interface), a speech-to-speech conversational AI that perceives and responds to emotional cues in real time. Octave supports 100+ languages with native-level pronunciation, acting instructions for directing vocal performance, and 250ms speech LLM latency. Ranked #1 in naturalness and expressivity, with 600+ emotion and voice characteristic tags detected. Built on decades of scientific research in human expression, with a strong ethical framework prioritizing beneficence and emotional well-being.

Features

• •Text-to-speech with natural language voice design
• •Instant voice cloning from seconds of audio
• •100+ language support with native pronunciation
• •Acting instructions for directing vocal delivery
• •Empathic Voice Interface (EVI) for conversational AI
• •600+ emotion and voice characteristic detection tags
• •250ms speech LLM latency
• •Voice conversion and cross-lingual synthesis
• •Developer API with TypeScript, Python, React, Swift SDKs
• •Expression measurement for video, audio, images, and text

Use Cases

• •Building emotionally intelligent voice agents and chatbots
• •Creating natural-sounding voiceovers and audio content
• •Cloning voices for consistent brand narration across languages
• •Measuring emotional response in user research and content testing
• •Adding expressive speech to gaming, entertainment, and creative projects