Convai alternative
AI NPCs without per-reply quotas
Convai counts every character reply against a monthly quota, with concurrency set per API key. Neocortex gives game teams monthly credits, free editor testing and characters designers control.
- Free plan
- No credit card
- Unity, Unreal, Godot, Web SDK and Web API
5
ways to integrate
Unity, Unreal, Godot, Web SDK, 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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Overview
What is Convai?
Convai is a cloud platform for embodied 3D conversational characters, with Unity and Unreal plugins, a web SDK and no-code avatar tools. Usage is counted per character reply against monthly plan quotas.
The short answer
Convai or Neocortex: which fits your game?
Side by side
Convai vs Neocortex: feature comparison
The facts that matter when you put AI characters in a game.
| Compared on | Convai |  Neocortex |
|---|---|---|
| Built for | Training, XR, brand avatars and games | Games first |
| Character design | Web dashboard and no-code avatar tools | Visual node editor: personality, emotion, knowledge, intents, actions |
| Usage model | Interaction quotas plus user and concurrency caps per plan | Monthly credits; editor testing is free |
| Engines | Unity, Unreal, Three.js, Web SDK | Unity SDK, Unreal plugin, Godot (beta), Web SDK, Web API |
| Voice | Large voice library, lip sync | Streaming TTS and STT, voice cloning from a 10-second sample, voice design |
| Local AI | On-prem for enterprise only | Local LLMs in Unity via Ollama; self-hosted platform for studios |
| Free tier | Free plan with 100 interactions | Free plan |
Built for
Convai
Training, XR, brand avatars and games
Neocortex
Games first
Character design
Convai
Web dashboard and no-code avatar tools
Neocortex
Visual node editor: personality, emotion, knowledge, intents, actions
Usage model
Convai
Interaction quotas plus user and concurrency caps per plan
Neocortex
Monthly credits; editor testing is free
Engines
Convai
Unity, Unreal, Three.js, Web SDK
Neocortex
Unity SDK, Unreal plugin, Godot (beta), Web SDK, Web API
Voice
Convai
Large voice library, lip sync
Neocortex
Streaming TTS and STT, voice cloning from a 10-second sample, voice design
Local AI
Convai
On-prem for enterprise only
Neocortex
Local LLMs in Unity via Ollama; self-hosted platform for studios
Free tier
Convai
Free plan with 100 interactions
Neocortex
Free plan
Competitor details checked against their own docs, pricing pages or public reporting in October 2026.
Why teams switch
Why game teams choose Neocortex over Convai
Predictable costs
Monthly plans with included credits, so a busy evening does not burn a reply quota.
Free testing
Talking to characters in the browser editor never uses credits, on any plan.
Behaviour you can see
Every character is a visible graph, so designers know why it acts the way it does.
Gameplay hooks
Actions, interactable objects and an emotion tag on every line.
Conversation Flows
Steer a character through story beats and get notified when a checkpoint is reached.
Local when you need it
Prototype with open models through Ollama in Unity; self-host the platform for studios.
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
Convai alternative: common questions
Want the long version? Read the in-depth Convai comparison.
How much does Convai cost for indie games?
Convai charges per character reply against monthly quotas. Neocortex uses monthly credits, starts with a free plan, and testing characters in the editor never uses credits.
Does Convai work offline?
No, it runs in the cloud, with on-premises only for enterprise deals. With Neocortex you can prototype with local models through Ollama in Unity, and studios can self-host the platform.
Does Convai support Godot?
No. Neocortex has a Godot SDK in beta, alongside its Unity SDK, Unreal plugin and Web API.
What is the best Convai alternative for Unity?
Neocortex. AI NPCs your designers control in a visual editor, with voice cloning, actions and monthly credits instead of a per-reply quota.
NPCs your designers control
Free plan, no credit card. Build a character in the browser and talk to it in minutes.
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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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