AI Basics · Plain English
Large Language Model
The engine behind modern AI assistants: a model trained on text that can read, write, and summarize language.
A large language model (LLM) is the engine inside tools like Microsoft Copilot, ChatGPT, and Claude. It has been trained on vast amounts of text, and what it learned is a deep statistical sense of how language works — which lets it draft, summarize, translate, and answer questions.
Two practical consequences follow. First, an LLM is a language expert, not a facts database: it needs to be pointed at your approved documents to answer questions about your business reliably. Second, different models have different strengths — one may be better at long technical documents, another at spreadsheet work — which is why this plan routes work across several platforms instead of forcing one to do everything.
Where it shows up in this proposal: the Platform Comparison sheet routes each kind of work to the model family that fits it.