A programming language · a game engine · a local AI runtime

AI as a component. Not an oracle.

CX+AI treats a local small language model as a deterministic, observable component of a running program — not a remote service you rent by the token. Write one line; an entity in your game or application behaves autonomously. Then ask the runtime to show you — in source code — exactly what its AI did.

you writeguard.cx
the runtime shows its workcx --decompile
// lifted from register VM — rule 'guard'
{
    float d = distance(e["x"], e["y"], player["x"], player["y"]);
    if (d < 120) { e["state"] = "pursue"; }
    else { e["state"] = "patrol"; }
}

That second panel is the point. AI-written behavior runs in a bounded region and decompiles back to readable source, on demand, at runtime. Your program can always account for itself.

01 / how it works

One line in. A receipt out.

Autonomous in a few lines

Rules are plain C bodies over an entity — written by you or by the AI — compiled at runtime by the language's own compiler and hot-attached to live entities. No recompile, no restart.

Local, so it's free to run

The model runs on the player's machine. No cloud round-trips, no per-user inference bill, no data leaving the device. AI-driven gameplay that still works offline — and still works when a provider changes its prices.

Bounded & inspectable

AI may only modify designated regions, executed by a compact register VM with hard loop budgets. Every instruction decompiles back to source. Built for a world where software increasingly has to explain its AI.

02 / the platform

A complete stack, written in pure C.

~300
built-in functions
10
AI providers, incl. fully local
300+
automated tests passing
1000+
testers via the Kwaai community

Compiler, IDE, 2D/3D game engine with a particle system, and an embedded AI subsystem — one codebase, native ahead-of-time compilation for your code, a compact register VM for the AI's. Runs on Windows and Linux today, with more platforms on the way. CX is C-compatible: everything C can do, CX can do, with less ceremony. We are members of the Kwaai community and share its conviction that AI should be personal, local and open to inspection.

03 / team

Built by people who build runtimes.

Terence Agius

Founder · Technology

Thirty-five years building runtime and VM systems. Sole technical author of the CX+AI platform — compiler, engine, and AI subsystem.

Walter

Co-founder · Commercial

Marketing, partnerships and European regulatory engagement.

04 / early access

Early access opens soon.

A public demo lands this September. Leave an email and you'll be first in line for founding-user access — and nothing else; no newsletter carpet-bombing.

Form not working? Email us directly: hello@cxai.plus

CX+AI doesn't reinvent the wheel. It is the wheel.