Krisztian Eyssen, Krisztian Eyssen Run a Two-Week Model Bake-Off in Your Team Two weeks on the calendar, one day of work in total. At the end you will not have an opinion but a number — and a test set that stays with you for years. Intermediate Business owner Recipe Models & Market Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Your Model Was Deprecated: What Now? The loud case is easy: you get an error and you know what to do. The quiet case is the dangerous one — when everything still works, only the output has changed. Intermediate Business owner Troubleshooting Models & Market Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Leaderboards vs Real Use: Why They Disagree The most-used models are regularly not at the top of the rankings. Not because the rankings lie — because they do not measure what people actually choose on. Intermediate Everyone Explainer Models & Market Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen European AI Options: Data Residency and Sovereignty "Our server is in Frankfurt" — that is a fact about geography, and it says almost nothing about law. Separating the two is the point of this article. Intermediate Business owner How-To Models & Market Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Which Models Handle Smaller Languages Well Non-English text breaks into up to three times as many tokens as English — and that is the easier problem. The harder one you can measure yourself in five minutes. Intermediate Everyone Comparison Models & Market Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Fast and Cheap or Slow and Smart? Picking the Right Tier Inside one family the price gap between the cheapest and the most expensive tier is twenty-five fold. Most tasks do not need the most expensive one — and this is the easiest saving available. Intermediate Business owner How-To Models & Market Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen What You Actually Pay For: AI Pricing Decoded Six pricing shapes, four multipliers the list price does not show, and the hidden costs that turn the bill into three times the estimate. Intermediate Business owner Explainer Models & Market Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Chain-of-Thought: When Asking for the Steps Still Pays "Think step by step" was the best trick going for years. On most models today it is redundant, and in places it actively hurts. Here is what survived. Intermediate Office worker How-To Prompting Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Structured Output: Asking for a Table, JSON or a List A good answer and a usable answer are not the same thing. There are three levels, and most people stop at the first — even though the second is well within reach. Intermediate Office worker How-To Prompting Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Constraints That Stick "Don't include X" surprisingly often produces exactly X. Not out of spite — it follows from the mechanics. One rewriting rule makes most prohibitions enforceable. Intermediate Office worker How-To Prompting Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Delimiters and Sections: Keeping Long Prompts in Order As soon as a prompt runs longer than ten lines, a question arises that the model also has to be able to answer: where does the instruction end and the data begin? Intermediate Office worker How-To Prompting Sep 11, 2026
Krisztian Eyssen, Krisztian Eyssen Meta-Prompting: Let the AI Write the Prompt If you cannot articulate what you want, don't articulate it. Turn the situation around and have it interview you — with three copyable recipes. Intermediate Office worker Recipe Prompting Sep 11, 2026
