Charisma.ai alternative
AI characters built for games
Charisma.ai's homepage now leads with online training and campaigns. Neocortex is focused on characters players talk to, fight beside and trade with.
- 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
Charisma.ai or Neocortex: which fits your game?
Side by side
Charisma.ai vs Neocortex: feature comparison
The facts that matter when you put AI characters in a game.
| Compared on | Charisma.ai |  Neocortex |
|---|---|---|
| Main focus | Training, campaigns and interactive stories | AI characters for games |
| Authoring | Story graph | Character graph plus Conversation Flows |
| Engines | Unity, Unreal, JS and React SDKs | Unity SDK, Unreal plugin, Godot (beta), Web API |
| Gameplay hooks | Emotions, move-to and look-at | Actions, interactable objects, per-line emotions |
| Voice | Voice library and custom voices | Streaming TTS and STT, voice cloning from a 10-second sample, voice design |
| Pricing | Credits per experience minute; enterprise build fees | Free plan; paid plans from €9/month with monthly credits |
| Local AI | Not documented | Local LLMs in Unity via Ollama; self-hosted platform for studios |
Main focus
Charisma.ai
Training, campaigns and interactive stories
Neocortex
AI characters for games
Authoring
Charisma.ai
Story graph
Neocortex
Character graph plus Conversation Flows
Engines
Charisma.ai
Unity, Unreal, JS and React SDKs
Neocortex
Unity SDK, Unreal plugin, Godot (beta), Web API
Gameplay hooks
Charisma.ai
Emotions, move-to and look-at
Neocortex
Actions, interactable objects, per-line emotions
Voice
Charisma.ai
Voice library and custom voices
Neocortex
Streaming TTS and STT, voice cloning from a 10-second sample, voice design
Pricing
Charisma.ai
Credits per experience minute; enterprise build fees
Neocortex
Free plan; paid plans from €9/month with monthly credits
Local AI
Charisma.ai
Not documented
Neocortex
Local LLMs in Unity via Ollama; self-hosted platform for studios
Competitor details checked against their own docs, pricing pages or public reporting in October 2026.
Fair is fair
What Charisma.ai does well
Charisma.ai has built AI-driven interactive stories since 2017 for names such as Warner Bros, Sky, the BBC and DreamWorks. For agency-style narrative and training experiences, its story graph is a strong tool.
Why teams switch
Why game teams choose Neocortex over Charisma.ai
Characters first
Design who the character is; add story structure only where you need it.
Conversation Flows
Guide characters through beats and get checkpoint events in your game.
Game loops
Actions and interactables connect dialogue to gameplay.
Multi-character scenes
Several NPCs can talk to the player and to each other.
Self-serve
Sign up and build today, no sales call or development fee.
Free testing
Test in the browser editor without spending credits.
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
Charisma.ai alternative: common questions
Want the long version? Read the in-depth Charisma.ai comparison.
Is Charisma.ai still for games?
Charisma.ai still offers Unity and Unreal SDKs, but its 2026 homepage leads with immersive conversational AI for online training and campaigns.
How does Charisma.ai charge?
Charisma.ai's PRO plan is pay as you go, with credits measured in experience minutes. Enterprise projects pay a development fee plus a monthly platform fee.
Can Neocortex do branching stories?
Yes. Conversation Flows steer a character through story beats and tell your game when a checkpoint is reached, while players still talk freely.
Is there a free plan?
Yes. Neocortex has a free plan, and editor testing is free on every plan.
Design characters for game loops
Free plan, no credit card. Build a character in the browser and talk to it in minutes.
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NVIDIA ACE alternative
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Player2 alternative
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ElevenLabs Agents alternative
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Hume EVI alternative
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Replica Studios alternative
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EGO AI alternative
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