Lesson Content

What kind of tool is Claude?

Claude is a large language model (LLM) – a type of AI system trained on a very large collection of text from books, websites, articles, code, and other written sources. During training, it learned statistical patterns about how words, sentences, ideas, and concepts relate to each other. It did not memorize a database of facts. It learned how language works.

This distinction matters enormously for how you use it.

When Claude answers a question, it is not querying a database the way a search engine does. It is generating a response token by token, based on what patterns in its training suggest is a plausible, coherent, helpful continuation of your input. This makes Claude excellent at reasoning, writing, summarizing, explaining, structuring, and drafting – and it makes Claude unreliable as a standalone source of verified facts.

Claude is a thinking tool, not a fact database.

Think of Claude less like an encyclopedia and more like a highly experienced colleague who has read an enormous amount – but who you still need to double-check when facts matter. That colleague can help you think through a problem, draft a document, spot weaknesses in your plan, suggest approaches you hadn't considered, and explain complex topics clearly. But you would not cite that colleague in a legal filing without verifying their claims independently.

Claude does not browse the internet in the default interface.

Unless you are using a version of Claude that has been explicitly connected to a live search tool, Claude cannot look things up in real time. It works from what it learned during training, which has a knowledge cutoff date. Anything that happened after that date is not in its training data.

Claude does not have memory between conversations by default.

Each new conversation starts fresh. Claude does not remember what you discussed yesterday, last week, or in a previous session unless you paste that context back in, or unless you are using a product that has added memory features. This is important to understand because students often assume Claude is building a relationship with them over time – by default, it is not.

Claude is not conscious, opinionated in a personal sense, or trying to please you.

Claude is designed to be helpful, harmless, and honest. It will push back on requests it considers harmful or misleading. It will acknowledge uncertainty when it has it. It is not telling you what you want to hear – it is generating what it calculates to be a useful response. Understanding this helps you interpret Claude's answers more accurately.