What is a token in an LLM, and why it matters
What a token is, how a language model splits text, and why tokens drive costs, length limits and some of the strange mistakes AI makes.
Read the guide →Practical guides to AI and LLMs
Free guides with no formulas: how a language model reasons, how to talk to it better, and how not to be fooled by its answers.
How an LLM works, explained without formulas
How a language model turns text into numbers, uses attention and builds an answer one token at a time, explained without formulas or code.
Read the guide →How to write a good prompt: five rules with examples
Five practical rules for writing clear prompts, with before and after examples: goal, context, format, examples and improving the first answer.
Read the guide →Why AI makes things up, and how to check its answers
Why AI models state false information with confidence, which answers to always check, and a simple method to verify facts, sources and numbers.
Read the guide →