Meet Hume’s Empathic Voice Interface (EVI), the first conversational AI with emotional intelligence.

EVI understands the user’s tone of voice, which adds meaning to every word, and uses it to guide its own language and speech. Developers can use our API as a voice interface for any application. Try it here:

✨EVI has a number of unique empathic capabilities 1. Responds with human-like tones of voice based on your expressions 2. Reacts to your expressions with language that addresses your needs and maximizes satisfaction 3. EVI knows when to speak, because it uses your tone of voice for state of the art end-of-turn detection 4. Stops when interrupted, but can always pick up where it left off 5. Learns to make you happy by applying your reactions to self-improve over time Of course, it includes fast, reliable transcription and text-to-speech and can hook into any LLM.

EVI will be publicly available in April. If you’re a developer interested in earlier access to the API fill out this form:

If you’re interested in working on EVI and aligning AI with human well-being, we’re hiring:

Are you doing any early API access for devs? Feels like one of the more important things I’ve seen so far and would love to try it :)

check dm

would love early access, been following your journey since day 0 and this is super exciting

we appreciate your support! sign up for the API at and we’ll reach out soon :)

This is breaking my brain

woa I was just playing around with something that could be a good use case for this

cool idea ! sign up so you can start building asap :)