So you’ve mastered prompt engineering—kind of. You know how to write instructions that make a large language model sound like a polite customer service rep or, depending on your business needs, a swashbuckling pirate with strong opinions about “The Goonies”. But sometimes… prompts alone aren’t enough. You need to train the thing. Welcome to the next level.

Okay, buckle up, because we’re about to go on a journey through the magical world of Large Language Models (LLMs)—but don’t worry, I’m keeping this at the level of ‘barely awake before coffee’ comprehension.