---
title: "Undominated.ai Articles | Len P. van der Hof"
description: The independent AI inference price index.
image: "https://lenvanderhof.com/photos/len-portrait-1.jpg"
---

Tag

# Undominated.ai

The independent AI inference price index.

AI Systems

## [Agent runtime budget: keep retries inside the same ceiling](https://lenvanderhof.com/en/blog/agent-runtime-budget/)

A cap that resets on every retry is a cap per attempt, not per task.

Len P. van der Hof3 October 2026

AI Systems

## [Dutch costs 20% more GPT tokens than English. We measured it on 78 article pairs](https://lenvanderhof.com/en/blog/dutch-costs-more-tokens/)

Same content, same author, two languages. The Dutch version was 2% longer in words and 20% longer in tokens.

Len P. van der Hof9 October 2026

AI Systems

## [Introducing Undominated.ai: the independent AI inference price index](https://lenvanderhof.com/en/blog/introducing-undominated/)

Best first. Then price. The board that names every model something else beats without a trade-off.

Len P. van der Hof25 August 2026

AI Systems

## [Is one AI model enough? When a single model works, and when you need a portfolio](https://lenvanderhof.com/en/blog/one-model-is-not-a-portfolio/)

The number of models is the wrong question. The right one: did anyone write down why each model runs, and what happens when it stops?

Len P. van der Hof29 September 2026

Venture Building

## [What is a dominated AI model? Better and cheaper is only half the test](https://lenvanderhof.com/en/blog/what-is-a-dominated-model/)

Another model is better and no dearer. Before you switch, ask the question the label skips: can it still do your job?

Len P. van der Hof27 September 2026