---
title: "Writing | Tiaan van Antwerpen"
description: "Notes on industrial engineering and AI: constraints, measurement, LLM routing, and what breaks when an agent meets a real workflow."
url: "https://tiaanvanantwerpen.com/blog"
type: "collection"
updated: "2026-10-01"
---

# Writing

> Posts by Tiaan van Antwerpen.

## The factory moved into the inbox

- url: https://tiaanvanantwerpen.com/blog/the-factory-moved-into-the-inbox
- markdown: https://tiaanvanantwerpen.com/blog/the-factory-moved-into-the-inbox/index.md
- published: 2026-10-01
- length: 5 min read

Why building agentic AI is an industrial engineering problem, and what a hike in The Goal has to do with it.

## The model is not the hard part

- url: https://tiaanvanantwerpen.com/blog/model-is-not-the-hard-part
- markdown: https://tiaanvanantwerpen.com/blog/model-is-not-the-hard-part/index.md
- published: 2025-12-08
- length: 2 min read

Notes from forward-deployed enterprise AI work: the model is one component among many, and rarely the one that decides whether a project succeeds.

## Adaptive LLM routing for effective agentic workflows

- url: https://tiaanvanantwerpen.com/blog/adaptive-llm-routing
- markdown: https://tiaanvanantwerpen.com/blog/adaptive-llm-routing/index.md
- published: 2025-11-20
- length: 6 min read

My MEng research: routing a text-to-SQL agent across thirteen models. The RAG router landed on the Pareto front at a fifty-sixth of the cost of Claude Opus 4, and on correctness alone, none of it beat simply picking a good model.

## for agents

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