Notes on machine learning
Technical notes written while learning: honest evaluation, data leakage, deployment, LLM applications and the mistakes behind each lesson. They come from the projects on this site, with the code one click away.

LLMs·15/05/2026·2 min
When is it worth using an LLM — and when is it not?
LLMs solve certain problems better than anything else. Others they solve worse than a three-line classifier. The question to ask before opening the OpenAI API.
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