About Felix Koole
Felix Koole
I’m Felix. I study AI, work in generative engine optimisation, and spend too much time thinking about how LLMs decide what to say.
My path here is a bit non-linear. I spent five years building websites and doing SEO as a freelancer, which gave me a solid intuition for how search works. Then AI search started eating traditional search, and I found myself uniquely placed at the intersection of both worlds — someone who understands the SEO side and has the technical background to reason about the models themselves.
I graduated with a BSc in Artificial Intelligence from Utrecht University in 2025 (officially called Kunstmatige Intelligentie, which I think sounds better). I’m currently doing a Research Master in AI, which I expect to finish in 2028 — assuming I don’t get too distracted by whatever GPT-n just dropped.
By day I’m an LLM Visibility Engineer at PromptMarketing in Amsterdam, where we help brands get cited and surfaced by AI systems. By night I run experiments, write up what I find, and publish it here and on Substack and HackerNoon.
My bachelor thesis was on multi-task learning for medical image segmentation — specifically training a U-Net to segment polyps from colonoscopy images without getting confused by blue dye markers. These days my experiments are less about polyps and more about why ChatGPT recommends one brand over another.
If you’re an SEO specialist trying to make sense of the GEO transition, most of what I write is aimed at you.
I’m Felix. I study AI, work in generative engine optimisation, and spend too much time thinking about how LLMs decide what to say.
My path here is a bit non-linear. I spent five years building websites and doing SEO as a freelancer, which gave me a solid intuition for how search works. Then AI search started eating traditional search, and I found myself uniquely placed at the intersection of both worlds — someone who understands the SEO side and has the technical background to reason about the models themselves.
I graduated with a BSc in Artificial Intelligence from Utrecht University in 2025 (officially called Kunstmatige Intelligentie, which I think sounds better). I’m currently doing a Research Master in AI, which I expect to finish in 2028 — assuming I don’t get too distracted by whatever GPT-n just dropped.
By day I’m an LLM Visibility Engineer at PromptMarketing in Amsterdam, where we help brands get cited and surfaced by AI systems. By night I run experiments, write up what I find, and publish it here and on Substack and HackerNoon.
My bachelor thesis was on multi-task learning for medical image segmentation — specifically training a U-Net to segment polyps from colonoscopy images without getting confused by blue dye markers. These days my experiments are less about polyps and more about why ChatGPT recommends one brand over another.
If you’re an SEO specialist trying to make sense of the GEO transition, most of what I write is aimed at you.
Connect
Interested in AI, GEO, or just want to say hello? Reach out through any of the channels below.