← Index/03 · Creative tools · 2025

North Protocol
A multimodal canvas.

An AI-native interface for film pre-production — text, image, and storyboard as one editable medium.

North ProtocolInterfaces · Streaming

✺ — The problem

North Protocol's pre-production tool used to be three separate apps stitched together with copy-paste. Their users — directors and producers — wanted one canvas where they could write a scene, generate a frame, and revise both at the same time, without losing the through-line.

Sector

Creative tools

Year

2025

Duration

16 weeks

Team

1 Principal · 1 Designer · 2 Engineers

Stack

TypeScriptReactWebGLReplicatetRPCConvex

✺ — Approach

The same arc as every engagement — tuned to this problem.

01

Define · The unit of work

We spent a week shadowing two production teams. The atomic unit wasn't 'a prompt' or 'a frame' — it was 'a beat': a moment that connected text intent, visual reference, and motion direction. The whole interface had to compose around that.

02

Build · Streaming as a first-class state

Every panel renders partial state — text streams in word-by-word, frames generate progressively, edits are optimistic. The canvas never blocks; the user never waits without seeing progress.

03

Operate · A surface, not a chatbot

We retired the chat input. Every action lives where it belongs — on the beat, on the frame, on the camera path. The model is invoked by the interface, not addressed by the user.

✺ — Outcome

Three numbers we’d defend in public.

5.4×

more iterations per session vs. v1

82%

of sessions used multimodal edits, not text alone

$4.2M

Series A closed two weeks after launch

Every other studio we talked to wanted to bolt a chat panel onto our app. Define AI asked what our directors actually do for a living, and then we redesigned the surface so the model fit underneath.

Founder, North Protocol