Four — AI & software studio

[01]About A fictional studio · design study by Erik van de Blaak

We build the software your team works in every day, including the parts that use AI.

Four is a small studio of senior engineers. We build one product at a time and stay responsible for it after launch, including the night it breaks.

[02]Selected work Illustrative projects

01 / 04

[03]Disciplines Four disciplines, one team

We work where complexity is high and reliability is non-negotiable, applying the same engineering discipline to every model we put into production.

No. Discipline

Autonomous workflows with guardrails, evaluations and a human in the loop wherever it matters.
Retrieval, structured output and tool use wired into the systems you already run.
Fast, accessible web products with the boring parts done properly: auth, data, deploys.
Data flows where every step is logged and every failure is visible, so models get clean input and reports add up.

[04]Principles How we work

We say what a system will and will not do before we build it. Scope, risks and trade-offs are written down, not implied.

Small details decide whether people trust software. We test with real data and fix the rough edges before launch, not after.

If a model is the wrong tool, we tell you. Honest advice early beats an impressive demo that fails in month three.