Lukas Hefti Lukas Hefti

Workflow Wednesday: Circuit Breakers for Agentic AI

Remember the market drop on May 6th, 2010? The Dow Jones lost 560 points in four minutes. Perceived risk spiked, market participants pulled out, and a stampede followed, temporarily annihilating roughly one trillion dollars in market value…

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Lukas Hefti Lukas Hefti

Workflow Wednesday: A Fireworks Way to Understand Data

Remember when you were a child on Silvester and were allowed to light a small firework for the first time? Chances are you were in awe, a little scared, and fascinated by the light at the same time. You kept your distance, careful about the splinters - and drawn to it…

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Lukas Hefti Lukas Hefti

Theory Thursday: How to Build Your Own Specialised LLM

Most of us use ready-made LLMs - they’re reliable, versatile and tested. But sometimes, you need to train your own. Andrej Karpathy’s llm.c shows how to train a small model on sequences, like lines from Shakespeare, by turning each word into a number and learning which comes next…

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Lukas Hefti Lukas Hefti

Trend Tuesday: OCR: Still Full of Surprises

“Optical character recognition (OCR) is a solved problem.” That’s a common conviction in the industry: it is often treated as a mature technology. A commodity we can stop worrying about…

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Lukas Hefti Lukas Hefti

Book The Modern AI and Data Platform: The Why, The What, and The How

After months of writing, editing, and refining … my upcoming book The Modern AI and Data Platform is almost here. It’s a collection of 42 short, fun-to-read chapters capturing everything we’ve learned about building powerful, future-proof platforms that create real value from data and AI, including the human side: culture, collaboration, and clarity. The book is structured in three parts: why AI belongs at the core, what defines a modern architecture, and how to turn principles into practice…

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Lukas Hefti Lukas Hefti

Theory Thursday Why language models hallucinate

A Fata Morgana can be a pretty mirage. And for the thirsty traveler, a deadly trap: the shimmer looks like salvation but turns out to be an illusion all along. Hallucinations in LLMs carry similar risks…

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Lukas Hefti Lukas Hefti

Workflow Wednesday: ⚙️ Cut Artificial Complexity Like Michelangelo

Inherent complexity is the difficulty in the business problem; artificial complexity is the extra friction we add through design and org choices. Think Michelangelo: the figure is “already in the marble,” and the work is to remove what is not essential. When integrating AI into real workflows, we address business problems…

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