The AI Interface Company

We build the layer between AI systems and human intent: interfaces where humans use AI, and agents that learn how to reach humans.

Proof systems

Two directions. One interface thesis.

Sketchbook

Superpencil

Visual-in, visual-out.

An agent-native visual thinking app. You draw, annotate, and sketch on an infinite canvas — AI agents respond visually in the same space. No prompts. No text boxes. The pencil is the interface.

One canvas across web + iPadAnnotations are promptsTested by teams at Apple, Google, Pixar
Open SuperpencilHuman uses AI

Direction

Superdirector

AI-to-human distribution intelligence.

A proof system for the last mile of autonomous software: AI reads public market signals, learns which humans can move belief, and turns that signal into structured creative direction. If Superpencil is humans using AI, Superdirector is AI learning how to use human distribution.

Open SuperdirectorAI uses humans

Acceleration

Each product built faster than the last.

01

Superworld (ST World)

2 years

Manual Coding

20K users, featured on a16z market map

02

Superpencil

6 months

LLM Coding

First online-syncable raster drawing engine

03

Superdirector

6 weeks

Agentic Coding

Brand growth video intelligence product

Team

Built from the first line of code.

Founder & CEO

Bell Chen

Bell prefers slower LLMs — he can't read as fast as they output. When he tries to describe a design idea in text, the idea dies in translation. So he started drawing things out on paper and photographing them as input. That's visual-in visual-out — he was doing it by hand before building it into a product. Coding since 14. Image generation paper at 18 (IEEE oral). Built Superworld (ST World) — 20,000 users, featured on a16z market map. Built Superpencil in 6 months, Superdirector in 6 weeks.