
Hume
Voice AI models powered by emotional intelligence for creators, developers, and enterprises. Create audio books, podcasts, conversational agents and more

Hume.ai is a next‑generation voice AI platform that brings emotional intelligence to speech interactions. It enables realistic, emotionally expressive conversations by understanding and generating tone, pace, and affect — not just the words. Built with multimodal research and psychology at its core, Hume.ai powers more human-like and empathetic voice experiences for applications such as customer support, coaching, therapy, and conversational agents.
Hume.ai combines real-time speech understanding with expressive speech synthesis. Its foundational models capture nuanced emotional cues from voice — such as stress, warmth, sarcasm, or frustration — and use them to inform how its AI responds. Rather than producing robotic voices, the platform’s tools let you design voice experiences that feel alive, emotionally resonant, and adaptable.
Key Features
- Empathic Voice Interface (EVI): An API that supports real-time, two-way voice conversations, detecting tone, pitch, and expression to adapt responses.
- Octave Text-to-Speech Engine: Allows users to craft expressive voices using simple prompts, controlling style, speed, and emotional tone.
- Expression Measurement API: Analyzes emotional content from voice, text, or video, mapping inputs to over 24 nuanced emotional states.
- LLM Integration: Can be paired with large language models so that spoken responses reflect both content and emotion.
- SDK & Developer Tools: Provides a Python SDK and developer tools for easy integration into applications.
- Flexible Billing: Offers subscription models and pay-as-you-go credits for various features.
- Fast and Responsive: Generates voice responses quickly, enabling smooth real-time interactions.
Benefits and Use Cases
Benefits:
- More natural conversations through recognition of emotional cues.
- Expressive voice design tailored to application or brand personality.
- Improved engagement by fostering trust, empathy, and connection.
- Scalable integration for broad user applications.
- Insightful analytics to understand user sentiment and behavior.
Use Cases:
- Customer Support: Voice agents detect frustration or confusion and adjust tone, improving satisfaction.
- Mental Health & Coaching: Digital coaches or therapy companions respond empathetically to users’ emotions.
- Interactive Storytelling / Entertainment: Create character voices with custom emotion, style, and mood for audiobooks or games.
- Voice-enabled Assistants: Assistants that answer questions while mirroring emotional tone for a personal feel.
- Emotion Analytics: Analyze voice, text, or video for emotional content in research, UX studies, or wellbeing tracking.