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Most customizable speech-to-speech AI for any application
Highest quality, most expressive AI voices: preset, cloned, or prompted
Frontier intelligence at conversational latency (300 ms) native to the model
Seamless communication with other models and tools in parallel
Built for Developers
  • Configuration: EVI is highly configurable. Adjust EVI's behavior and functionality to meet your application needs.
  • Conversational Controls: Guide response generation and EVI's behavior in real-time.
  • Chat History: EVI captures detailed histories of conversations, allowing developers to review and analyze past interactions.
Pricing

The most price effective conversational AI solution, full stop (despite being the highest quality).

Why integrate world’s most advanced speech language model?
  • With an end-to-end model, generate voice responses in <300ms
  • Clone not just voice, but also language and speaking style from <30s recordings
  • Adjust tone in response to user speech and even commands like “whisper anxiously”
  • Use external LLMs and tools to seamlessly guide or control language
Frequently asked questions

Access EVI 3 in the Hume iOS App

Speak with any voice and personality you create with a prompt. Create your own empathic AI.

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Resources

Evi3api

Announcing EVI 3 API: The most customizable speech-to-speech model

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Reg (1)

What is emotion science?

How can artificial intelligence achieve the level of emotional intelligence required to understand what makes us happy? As AI becomes increasingly integrated into our daily lives, the need for AI to understand emotional behaviors and what they signal about our intentions and preferences has never been more critical.

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Expuni

Are emotional expressions universal?

Do people around the world express themselves in the same way? Does a smile mean the same thing worldwide? And how about a chuckle, a sigh, or a grimace? These questions about the cross-cultural universality of expressions are among the more important and long-standing in behavioral sciences like psychology and anthropology—and central to the study of emotion.

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Create experiences with the most empathic AI voices today

Prompt the first LLM for text-to-speech to create new voices, instruct emotions, and more

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