neo

Multi-threaded AI-native runtime for real-time application mutation.

EstablishedOpen SourceLow lock-in
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Pricing

Free tier

Flat rate

Adoption

→Stable

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is neo?

The Application Engine for the AI Era, neo is a multi-threaded runtime with a persistent Scene Graph that allows AI agents to introspect and mutate applications in real-time. It's designed for developers building dynamic, intelligent applications.

Key differentiator

“neo stands out as a unique runtime environment specifically designed for AI-native applications, enabling developers to build highly interactive and adaptive systems where the application structure can be dynamically modified by AI agents in real-time.”

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Multi-threaded runtime for high performancemedium

Persistent Scene Graph for application introspection and mutationmedium

Real-time AI agent interaction with the application structuremedium

↓ Weaknesses

Steep learning curve for non-JavaScript developershigh

neo's primary language is JavaScript, and its API heavily relies on JavaScript-specific patterns, making it challenging for developers unfamiliar with the language.

Limited documentation and community supportmedium

The official documentation lacks comprehensive guides and examples. The community is relatively small, leading to fewer resources and slower response times on forums and issues.

Performance degradation with large-scale applicationshigh

As the complexity of Scene Graph increases, neo's performance can suffer due to its real-time introspection and mutation capabilities, leading to potential bottlenecks in large-scale applications.

Complex setup process for new projectsmedium

Setting up a new project with neo involves multiple steps including configuration of the Scene Graph and integration with AI agents, which can be time-consuming and error-prone without detailed guidance.

Fit analysis

Who is it for?

✓ Best for

Teams building highly interactive and adaptive web applications with AI-driven features

Developers who need a runtime that supports real-time application mutation by AI agents

Researchers working on AI-native applications where the application structure can be dynamically modified

✕ Not a fit for

Projects requiring minimal setup or no self-hosting capabilities

Applications that do not require real-time interaction with an AI agent

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Works well with

React

Next step

Get Started with neo

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →