Hume EVI shuts down November 13
Move your voice characters before November 13
Hume's documentation says its EVI and TTS APIs are being sunset on November 13, 2026, with account data deleted afterwards. Neocortex gives your characters a new home with voice in and out.
- Free plan
- No credit card
- Unity, Unreal, Godot and Web API
4
ways to integrate
Unity, Unreal, Godot, Web API
20+
languages
set per character
10 s
to clone a voice
or design one from text
€0
to start
free plan and editor testing
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The short answer
Hume EVI or Neocortex: which fits your game?
Side by side
Hume EVI vs Neocortex: feature comparison
The facts that matter when you put AI characters in a game.
| Compared on | Hume EVI |  Neocortex |
|---|---|---|
| Status | Shutting down November 13, 2026 | Active, with regular SDK releases |
| Speech in and out | Yes | Streaming TTS and STT |
| Character definition | System prompt | Visual node editor: personality, emotion, knowledge, intents, actions |
| Emotion | Prosody-aware replies | Starting emotion per character and an emotion tag on every line |
| Voices | Hume voices | Voice cloning and voice design |
| Engines | Python, TypeScript, React; no Unity SDK | Unity SDK, Unreal plugin, Godot (beta), Web API |
Status
Hume EVI
Shutting down November 13, 2026
Neocortex
Active, with regular SDK releases
Speech in and out
Hume EVI
Yes
Neocortex
Streaming TTS and STT
Character definition
Hume EVI
System prompt
Neocortex
Visual node editor: personality, emotion, knowledge, intents, actions
Emotion
Hume EVI
Prosody-aware replies
Neocortex
Starting emotion per character and an emotion tag on every line
Voices
Hume EVI
Hume voices
Neocortex
Voice cloning and voice design
Engines
Hume EVI
Python, TypeScript, React; no Unity SDK
Neocortex
Unity SDK, Unreal plugin, Godot (beta), Web API
Competitor details checked against their own docs, pricing pages or public reporting in October 2026.
Fair is fair
What Hume EVI does well
Hume's Empathic Voice Interface was one of the most interesting voice APIs of the last two years, adapting the tone of its replies to how the user sounded.
Why teams switch
Why game teams choose Neocortex over Hume EVI
Migrate in an afternoon
Turn your system prompt into Agent, Knowledge, Personality and Emotion nodes.
Keep your voice
Clone it from a recording you have the rights to, or design a close match.
Emotion signals
Every reply carries an emotion tag you can use for animation and tone.
Engine SDKs
Unity, Unreal and Godot (beta) instead of building your own client.
Web API
Keep a custom stack and call characters over HTTP.
Help for larger moves
Moving a bigger project? Talk to us.
How it works
Characters you design, not prompts you babysit
- Personality, emotion, knowledge and world are nodes you connect, not prompts you rewrite.
- Intents and actions turn what a player says into something your game does.
- Test every character in the browser for free before it reaches your engine.
What Our Customers Say
Discover what creators are saying about building with Neocortex.
FAQ
Hume EVI alternative: common questions
Want the long version? Read the in-depth Hume EVI comparison.
When does Hume EVI shut down?
Hume's documentation states that access to the TTS and EVI APIs ends on November 13, 2026, and that account data is permanently deleted after that date.
What replaces Hume EVI?
Hume's docs give no migration guide. Neocortex covers speech in, a language model, expressive speech out and character definition, with SDKs for Unity, Unreal and Godot.
Can I keep my character's voice?
You can clone a voice from a recording of ten seconds or more that you have the rights to, or design a similar voice from a description.
How long does migration take?
Most characters move in an afternoon: recreate the character in the editor, set its voice, test it in the browser and connect your client.
Migrate before November 13
Free plan, no credit card. Build a character in the browser and talk to it in minutes.
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